The Natural Home Building Source
The Natural Home Building Source
The Natural Home Building Source

COLORADO ONLY - Infiltrator IM-540, IM-1060 and IM-1530 septic tank kits. Click here for main septic chapter with other system parts and pricing.

The wastewater your home produces is referred to as effluent and consists of blackwater (toilet waste and garbage disposal) and greywater (kitchen, shower, sink, and laundry waste). Effluent flows directly from your house into a watertight, underground, two compartment septic tank where solid waste settles into a sludge layer on the bottom and fats float to the top. Between these two scum layers is a zone of clarified liquid effluent that is internally piped to the second compartment of the septic tank for additional settling. As effluent fills the first compartment, clarified liquids are forced to leave the second compartment of the sewage tank and flow out to the leach field. Without this two compartment design, with divider/partition/baffle, solids might be able to leave the tank and enter your leach field, eventually clogging the soil pores and resulting in leach field failure someday. Best practice is to install a 1500 gallon septic tank even when a 1000 gallon tank is 'allowed'. For the additional $300 investment, you save big in the long run with fewer septic tank pumping and less strain on the leach field. Longer retention time in a larger tank prevents harmful sediment from getting out into your leach field. Sewage receives advanced treatment from longer settling time and increased bacterial processing, especially in a cold climate. Infiltrator IM-1530, IM-1060, and IM-540 are all the same width 5 foot 2 inch (62") and height 4 foot 7 inch (55"). IM-1530 is four feet longer at 14 foot 8 inch (176") and 501 pounds, IM-1060 is 10 foot 7 inch (127") long and 320 pounds, IM-540 is 5 foot 5 inch (65") long and 169 pounds. You must have tow chains (or straps) and a backhoe (or similar machinery) with operator on-site to off-load the septic tank, using its installed lifting ropes. Driver requires assistance unloading merchandise.

Please note we are not Infiltrator®, the manufacturer, and we do not ship Infiltrator plastic septic tanks or Infiltrator chamber leach field systems outside the state of Colorado. For out-of-state referral, please contact the manufacturer direct at: e-mail: or phone: 800-221-4436. Infiltrator chambers and plastic injection molded septic tanks are delivered free by company truck within about 50 mile radius of Denver (North to Fort Collins and Greeley, South to Monument and Franktown, West to Georgetown and Bailey, and East to Deer Trail and Tampa) or provided will-call, pick up in person at the Denver area warehouse. Motor freight for such large items has become so expensive we no longer quote out-of-state shipments of septic tanks, and chamber systems, but any local distributor of plastic storage tanks and PVC pipe is capable of sourcing septic tanks and chamber systems for your project. After purchase, we encourage clients to mail copies of their septic system permit plans for our review, as there are always details that could use some small improvement... with any engineered and approved plan. We'll do our best to help you avoid critical mistakes, like not using risers or not venting your leach field properly. We offer a 3% cash discount for payment other than credit card (bank wire transfer, bank cashier's check, or US Postal money orders). For invoice and scheduling delivery, please e-mail with parts cut-list and drop site location along with best telephone number for driver to use in-route. We can normally schedule an AM or PM delivery when given at least three days advance notice, weather permitting. Driver requires assistance unloading merchandise. If you are purchasing a septic tank, you must have tow chains (or straps) and a backhoe (or similar machinery) with operator on-site to off-load the septic tank, using its installed lifting ropes.

Infiltrator septic tanks are extra-heavy-duty with ribbed walls for DRY burial up to 4 foot deep!
FREE truck delivery only in Colorado. We do not ship septic tanks or chambers outside Colorado.
Delivery radius about 50 miles around central Denver. Or you can will-call pick up in person at yard.
Infiltrator Quick4 Plus leach field chambers are also available for free delivery with septic tank order.

$695 Infiltrator IM-540 kit*  552 gallon rated, one compartment, one manhole tank 62" wide by 55" high by 65" long
$1149 Infiltrator IM-1060 1094 gallon rated, two compartment, two manhole tank 62" wide by 55" high by 127" long
$1449 Infiltrator IM-1530 1537 gallon rated, two compartment, three manhole is 62" wide by 55" high by 176" long
*All tanks include two rubber grommets and two PL-68 drop tees that fit SDR35 & Sch40 4 inch pipe (1 PL-68 with IM-540)
$68 for 18" risers, $54 for 12" and $34 for 6" tall stackable risers includes stainless steel mount screws

$69 tank filter kit
includes housing and handle assembly - free 5 inch hole saw kit included with septic tank purchase
$45 for 7-hole D-box or $55 for 9-hole includes SDR35 OR Sch40 seals & plugs - $20 each 6" tall D-box risers
Pipe and fittings can be quoted with a cut-list detailing type of pipe (SDR35 or Sch40) and quantity
*$320 automatic dosing siphon can be installed in the IM-540 tank complete with 2 inch outlet pipe

3% Cash Discount when your order is paid with bank cashier's check or US Postal money orders
For invoice, email address & parts list: or fax: 720-293-1705
We can usually arrange AM or PM delivery choice with payment at least 3 days in advance

Infiltrator septic tank installation video with excavation and backfilling instructions

IM-540 552 gallon tank specifications
IM-1060 1094 gallon tank specifications
IM-1530 1537 gallon tank specifications

IM-540 552 gallon tanks used in series
IM-1530 septic tank cut-away drawings
Infiltrator septic tank certification letters

Infiltrator IM-1530 two compartment septic tank cut-away drawing.

Do-it-yourself septic tank design tips and general rules of thumb for installation
* Larger septic tanks require less pumping and ensure leach field longevity
* Septic tank up to 10 feet away and leach fields 20+ feet from foundation
* Straight from foundation to septic tank, no bends that might catch sediment
* Slope four inch pipe 1/8 to 1/4 inch per foot, never any steeper before tank
* Finalize pipe slope with a transit - only use a four foot level to approximate
* Always install risers on manholes to prevent soil instrusion when servicing
* Avoid exposing septic tank lids - best to cover with soil, pavers, or mulch
* Always install a cleanout in sewer line near home foundation for servicing
* Bed all pipe and tank in at least 6 inches of gravel to prevent frost issues
* Always install a septic filter in the second compartment, outlet side of tank
* Never use 'septic treatments' as they do more harm than good to leach field
* Likewise, avoid harsh detergents, bleach, disinfectants, and drain cleaners
* Never install geotextile fabric on the bottom of leach pit or drainage trench

A very important design consideration is having at least one manway riser above every manhole on the septic tank. Without a riser, it is impossible to open lid for servicing without sending debris down into the tank's manhole. Conventional to install at least one 12 inch riser for each manway, but you can certainly bury deeper in a cold climate. Infiltrator septic tanks are heavy-duty enough to be buried up to four feet deep. Risers are stack-able and available in 6, 12 and 18 inch tall, screw-together sections. Lid should be buried at least a few inches below grade to protect from sunlight damage and deeper in a cold climate. When designing site plan, you are not limited to coming in one end of tank and out the opposite end. Infiltrator tanks can be plumbed from three directions, on both inlet end and outlet end, so you have options about how to orientate tank to house and field. Pipe must come straight from foundation to septic tank, but you can install any bends you need after effluent leaves the tank. Critical to bed all pipe, fittings, and D-box well in plenty of gravel to ensure level is maintained and frost is not an issue. Best practice is to wet-set the D-box atop a bag of Quikrete with more around pipes to ensure it maintains level. Wet-set refers to pouring dry concrete mix under and around and then wetting with water. You can pre-mix, but it is often easier in the field to work with dry mix and avoid knocking D-box out of level. Fill the bottom of D-box with water up to hole openings to give it some weight and to be able to confirm level (water at all holes exit evenly).

Cut-away of conventional residential septic tank and chamber leach field system Georgia Co-Operative Extension Service's septic system manual serves as a good outline for any conventional septic tank system

main septic system design chapter with complete list of products & pricing

"Are we allowed to install this septic system on our property" is not a question we can answer for you. We have been providing much the same passive (non electric) septic system parts for over twenty years now, but we do not follow constantly changing city, county, and state building regulations. Unfortunately, with over 3000 counties in the United States, regulations changing from year-to-year, and interpretations of those rules varying from one inspector to another, it's never possible to say for certain 'what is allowed' locally. The county building department is your primary source of information on what is possible to install according to local 'code'. Rather than telephone them with questions, you should drive over in person and get a copy of their local Individual Sewage Disposal System ISDS Regs and also get a list of locally licensed soil engineers. The building department will confirm or revise your site plans once submitted for approval. Often the county inspector will assist you with site plans and design as a service provided for their permit filing fee. If not, they will refer you to a local engineering firm that can visit the property in person and design the system. We provide free consultation after the sale on installation procedures, system design improvements, and operational issues, but we do not provide any soil testing, on-site services, 'stamped' engineered plans, or 'advanced treatment' systems.

Septic tank sizing is best determined by usage and how long effluent stays in the tank before it goes out to the leach field. Consider a thirty hour sewage treatment retention time to be the minimum, with larger tanks allowing more time for solids to settle on the bottom and grease to float to the top. Less daily flow means more clarified liquid receiving treatment prior to disposal in the leach field. Best practice is to install at least a 1000 net gallon two-compartment tank. In the long run, a 1500 gallon tank will save money by having the septic tank pumped less often and the leach field is less subject to bio-mat formation due to untreated, less-clarified effluent. Plus, it allows you to add a bedroom or two later without the county requiring a larger septic tank, which is a nice selling point, adding value to any home. Slower percolation rates due to poorly draining soil with clay, bedrock, high ground water, proximity to a creek, or other complications require larger leach fields. There are two methods of calculating the minimum absorption area for a leach field. Traditionally, you dig an eight foot deep test inspection hole in the area of the intended leach field to allow building inspector, or your local engineer, to physically examine the soil and determine its Long Term Acceptance Rate. Or you can have a local soil testing firm perform a percolation test to clock the speed of your soil's capacity to absorb liquids. Local building code dictates the equation used to calculate how many square feet of leach field is required based upon the speed of percolation, composition of the soil, and LTAR. A general rule-of-thumb to use when estimating is one square foot of leach field, per gallon of effluent, per day, in normal soils that percolate relatively well. The Georgia Co-Op Extension Service's classic conventional septic system manual is recommended reading for understanding the basics of septic systems.

Save money by renting a backhoe and installing your own plastic septic tank for your home sewage system.
Should local code dictate installing a concrete septic tank, have it seal-coated well and try to avoid rectangular vaults, as the rounded end, hockey rink shape, is much stronger. Unlike concrete, plastic tanks are not affected by high ground water and saturated soils which will eventually erode concrete, forcing replacement. Plastic has many advantages over concrete in addition to durability in wet locations: consistent quality, portability without a crane truck, and three-way inlet and outlet ports. Polyethylene tanks will never crack (and leak) and they are easily moved around by two people, saving money on heavy equipment and making difficult locations easier to build. Septic tank size depends entirely upon local building code requirement, which is spelled out in the Individual Sewage Disposal System ISDS regulations for your area (local building code). Every county has its own unique regulations with equations and definitions that can change yearly and always are open for interpretation. In practice, a 1000 gallon, two compartment, septic tank is considered the minimum size requirement for an up to three bedroom home, with at least 1500 gallon recommended at four bedroom. The larger the septic tank, the slower and more thoroughly it processes the solid waste and the less often it needs to be pumped.

In most of the country, local regulatory officials allow homeowner-builders to submit a site plan and pull their own installation permits.
Stamped, engineered, septic system plans are typically not necessary unless your property percolation test was extreme (greater than 60 minutes per inch or less than 5 minutes per inch); or the site has seasonal groundwater; or there is bedrock or unsuitable soil less than four feet below the proposed leach field; or if the ground slope is in excess of 30% in the area of the proposed leach field. Engineered systems require a local professional engineer to approve (stamp) your site's septic tank and leach field plans. Anyone can draw up their own septic system plan, but legal liability then lies exclusively with your regulatory officials and they often defer to a licensed and insured local engineer. This releases the local government from future legal liability for your extreme septic system's failure. What is code in my area? is a uniquely local question and often changes yearly and varies from county to county in some states, so you need to check and see what is required on your property. Please note that we are not an engineering firm and we do not supply stamped, engineered plans, but we do consult for no charge with purchase of any complete septic system. Even professionals with 30 years in the business can get too tied up in 'how we've always done it' to realize simple improvements can make a huge difference in system performance and longevity. Regardless of what local Individual Sewage Disposal System ISDS guidelines will allow you install, best practice is to maintain certain high-quality guidelines for the sake of longevity, if nothing else.

*   When you apply for your building permit, the local health department official will most likely help you design the sewage disposal system and may even offer to have their office perform a soil test (LTAR) in lieu of a percolation test.
This involves digging a soil profile hole which is generally an eight foot deep trench in the area of the leach field. Most building departments wisely require a visual confirmation that there are no problematic soil conditions, groundwater, or bedrock in the area where you intend to put the leach field. But check with your local officials, as you may only need to provide a site plan survey (ILC) of your property (to establish setbacks from buildings, wells, streams, and property lines) and fill out some forms.
*   Your septic system site plan is typically drawn right on top of your property survey showing the septic tank and leach field 'setbacks' with tank 5-10 feet from the house, the leach field at least 20 feet from the house, at least 100 feet away from wells and streams, 25 feet away from dry gulches, and 10 feet away from the property lines. Or whatever the local regulatory officials require, so always check with the county first for minimum setbacks.
*   The home's sewer line drain pipe needs to slope 1/4 inch per foot downhill to the inlet side of the septic tank straight from foundation to septic tank with no bends that might catch sediment. The outlet pipe needs to flow downhill at least 1/8 inch per foot downhill to the leach field, where the septic tank effluent enters a manifold or distribution D box. Finalize pipe slope with a transit. Only use a four foot level to approximate. Beyond the manifold or D box the leach field trenches (for an Infiltrator chamber system) are excavated perfectly level at a depth of at least seven inches below the grade of the manifold pipes or D box (for chambers). And covered with at least one foot of soil atop the trench or chamber. Trenches can be deeper, if the site dictates, but rarely more than three feet below finish grade.
*   If the leach field is uphill from the septic tank (or if the local health regulations simply require it) a lift station is installed in-line after the septic tank. An electric pump in the lift station tank forces effluent out to the leach field every time it fills to a certain level 'dosing'. Most ISDS codes allow field size reductions with dosing or automatic siphons, so there may be a certain advantage to installing a lift station when building on small lots and/or with nearby streams or ponds. We do not sell pumps since they are readily available locally and the installing electrician tends to prefer supplying parts.
*   Never grind up (macerate) your sewage before sending to a septic tank unless absolutely necessary. Pumping treated sewage (after septic tank) up to the leach field with lift station is always an option, but do not macerate (pump) effluent prior to the septic tank. The septic tank operates by digesting solids and settling sludge to the bottom and allowing grease to float to the top of the septic tank. Macerating the sewage before entering the septic tank will create a septic tank without any large solids, just a cloud of ground up sewage particles. When you send these particles out to the leach field, you are bound to eventually clog the soil with bio-mat and then the leach field fails.
*   Never use bleach, drain cleaner, or harsh soaps with a septic system. Bleach and detergents kill the helpful bacteria that thrives in a healthy septic tank to optimally process toilet waste. Lack of proper septic tank bacteria will cause your leach field to fail from excessive bio-mat accumulation.
*   Please... Never use ANY of those septic tank or leach field chemical additives and miracle enzyme cures. Supposedly breaking down fats and solids in the septic tank, in practice, these additives simply allow smaller particulates to pass through the septic filter (hopefully you have one) where they re-unite in the leach field forming a dense bio-mat. At best, they will do no harm to your septic system or the environment, just waste your money. The FDA does not approve of any of them - none of these septic cleaning and/or maintenance products have been proven effective in the long run. The deciding factor should be to ask yourself if you would like to see these additives find their way into your well water. Anything that can supposedly digest raw sewage should scare a person to have in their drinking water and thus their digestive system. A properly designed two compartment properly-sized septic tank is going to operate just fine without any over-hyped additives.
*   Winter freezing is rare with proper installation and constant usage. Always have your tank pumped in the spring, never in the fall, or low bacterial activity may fail to keep the sewage warm. Surface freezing inside a septic tank can be avoided by bedding tanks in at least one foot of gravel (crushed or river rock). Drainage of the area under and around tank and above the tank, with waterproof tarp diverting drainage at least three feet away. If you can keep the water away from the sides of the tank, you can retain more heat in the dry ground and help speed decomposition of waste. In practice, this amounts to backfilling up to top of tank, sloping the ground away (mound) around perimeter, and then laying down a plastic tarp. A good tip is to set down a layer of straw before the tarp - it will cushion against rock damage and provide insulation. In extreme climates, a layer of two or four inch thick extruded polystyrene (EPS) foamboard insulation can be installed below the tarp.
*   If allowed, always divert greywater to a separate leach field (see greywater.html for details). Greywater contains soaps, which are designed to kill bacteria (clean and disinfect things). You want to encourage helpful "good" bacteria (digesting anaerobic cultures) to grow in your septic tank, not kill them with soap laden graywater. If you cannot divert all of your greywater, just diverting the washing machine discharge will make a big difference in performance and eliminate a large portion of a home's effluent, taking the load off your leach field.


Check both compartments yearly and pump before enough solids accumulate in first compartment to spill over into second compartment. Usually less than sixteen inches - consult manufacturer of your tank. Wrap a piece of white towel around the end of a long pole to check solids level in bottom of your septic tank. A healthy, properly sized septic tank might never need pumped, but not pumping when needed will result in grease and solids getting out to the leach field. Particulates, grease and solids create 'biomat' in the leach field percolation area, eventually causing it to fail and need replacement. Every three to five years is the normal cycle for pumping a septic tank (less often in warmer areas and/or lower usages). Should you live in an extremely cold climate, never have your tank pumped in the fall or winter - only pump in the spring. Septic tank water only avoids freezing through biological/bacterial activity (fecal matter decomposing). Refill your septic tank with water immediately after having it pumped!!! Without water on the inside, an empty septic tank is under extreme stress resisting the weight of backfill around it. This is especially true when soil is wet and when tanks are not properly bedded in plenty of gravel (selective, draining backfill). Stress is critical when sewage pumpers park too close to the tank, so always keep their truck at least 20 feet away. With enough stress, an empty concrete and fiberglass tank will crack, start leaking and eventually have to be replaced. Install an effluent septic filter and spray it off during yearly inspection of tank. Sieve filters keep larger particles from getting out of the tank and compromising the leach field by clogging soil pores and causing failure (bio-mat). Septic filters are cheap insurance, installing easily in the second compartment of your septic tank.


Every septic system (except the cesspool) has two distinct components: Septic Tank to catch solids and treatment area, usually a Leach Field, to dispose of liquid waste effluent. Cesspools allow direct discharge of sewage (solids and liquid) into a pit, pond or perforated tank where effluent evaporates and leaches down into surrounding soil while solids remain behind. Septic tanks conventionally use one of seven treatment area designs to dispose of effluent:

Leach Pits are large gravel filled holes, optimally with a perforated tank in center for discharging effluent. Drywells are a passive (no pump) solution for small/odd lots where a long leach field percolation field is not possible or desired. Leach pits take advantage of surface area around sides of the hole to dispose of large amounts of water in the right soil types. Adding a drywell to a leach pit gives it additional capability to accept large surges at one time. Always allow at least eight or ten feet of undisturbed soil space between pits to ensure maximum percolation and effluent treatment.
Leach Fields are trenches (or rectangular beds) dug in yard and filled with a foot of 3/4" - 1-1/2" gravel and a four inch diameter perforated pipe. The pipe-in-gravel leach line is covered with geotextile fabric (landscaping weed barrier) and then backfilled with a foot or two of native soil atop. Gravity sends effluent to leach field with at least a 1/8 inch per foot drop and then is dispersed into soil evenly with all of the leach field perforated pipe being at the same level.
Chamber Systems are a tried and true advancement in leach field design - arched panels in the trench. Effluent flows into this large open area underneath the yard; the entire bottom of a chamber is open. With no gravel inside, chambers have ample air to help keep the leach field soil aerobic and healthy.
Pressurized Mound Systems make use of an electric pump to force effluent into elevated mound 'constructed soil' systems and distant trenches, beds or chambers. Even distribution of effluent is key to smaller leach field sizing and better treatment of the waste water. Poor soil percolation sites often require pressure distribution constructed sand mounds with two inch diameter pipe drilled with 1/4 inch holes every two feet, or so.
Evapotranspiration / Drip Beds are pressurized systems with smaller holes or nozzles (drip) for even more uniform distribution of waste water, but are prone to plugging from calcification of the nozzles. In areas that do not get snow cover in the winter, long shallow trenches can be run through yard, sending waste water into the root zone near surface. The plants transpire water through growth and some water evaporates being so close to surface, with a smaller portion of effluent percolating down into water table.
Lagoons, Cesspits, and Cesspools are man-made ponds where the effluent percolates and evaporates, often assisted by a fountain or bubbler. Normally reserved for high clay soil areas where percolation is difficult, lagoons can be lined to prevent percolation in a fragile area - evaporation being the only means of disposal. Six foot fencing and a locked gate are standard practice with any lagoon or cesspool due to the legal liability from safety issues.
Constructed Water Treatment Wetlands are shallow lagoons and mainly designed in hot climates since plant life is key. Active plant growth year-round is desired for the constructed wetland plants to help dissipate the nitrogen and truly treat the effluent. Constructed wetlands show the most promise for a carefree low-maintenance treatment area, but you do generally need to live in a non-freezing climate. They are an excellent choice for greywater disposal, taking a major load off the septic tank and leach field system (blackwater only - toilets and dishwasher).

Flow director splitter valves are far superior to distribution boxes or splitting effluent flow with a tee fitting manifold. Effluent flow can be split 50/50 evenly between the two outlet lines OR alternate the flow 100% to one side or the other. This allows one half of your leach field go fallow for a few months to revitalize soil, prevent overloading, and reduce the growth of bio-mat. Three director valves will allow splitting flow between four separate leach field lines. And seven director valves will allow splitting flow between eight separate leach field lines. You can stagger installations with an even number of diverter valves, splitting flow into unique percentages to dial-in percolation area saturation. Director valves make for a very professional and longer lasting leach field versus using often wildly inaccurate distribution boxes or tee manifolds.

Director Valve Kits are $69 each with discount for quantity
comes with threaded access cap, riser pipe coupler, and flow adjustment handle
FREE Shipping to 48 states - in stock for quick shipment by the next business day
$69 for 1, $66 each for 2, $63 for 3, $61 for 4, $59 for 5, $57 for 6, and $55 for 7+ valves

flow director splitter valve additional images, design details and installation guidelines

Flow director valve assembled with coupler, riser, and threaded cap     Flow director valve showing handle kit inside riser assembly

main septic system design chapter with complete list of products & pricing

Privacy Statement: We will never release your name, contact information, or purchase history to anyone!
By using this website, you acknowledge reading, understanding & accepting Terms of Service Agreement
© 1998 - 2016 by Architerra Enterprises, Inc. d.b.a. All rights are reserved, please.
Close Terms of Service Agreement

Merchandise advertised online as Free Shipping only applies to the 48 contiguous United States of America. We do not ship Merchandise into Canada or Mexico, Alaska, Hawaii, Puerto Rico, Virgin Isles, APO/FPO, USPS mailboxes, freight forwarding services, or any off-shore island or international destination. We do not accept international credit cards for payment even when shipping within 48 contiguous United States. We do not accept personal checks or any money orders, other than US Postal Service money orders.

The use of this website,, is governed by the following Terms of Service Agreement ("TOSA"). This agreement shall constitute the whole agreement, in its entirety, between Architerra Enterprises, Inc. doing business as ("Merchant") and website visitor ("Client") and any purchaser ("Cardholder") of information, goods, or services ("Merchandise" or "Item" or "Shipment"). Merchant is referred to herein variously as: "", "Contractor", "Seller", "We", "Us" and "Our". Client hereby authorizes Merchant to perform work and supply information and any Merchandise or services as specified in writing by Merchant's invoice and automated email receipt from original purchase. Details within any email correspondence are secondary to the final invoice Merchandise description and online shopping cart receipt. By visiting website or by purchasing any service or Merchandise from Merchant, Client confirms and acknowledges reading, understanding, and accepting in-full this terms of service agreement. Client agrees without reservation to be legally bound by any and all terms and conditions contained herein. Signature and return of this TOSA form is not necessary for the terms and conditions herein to be valid and enforceable by law. Should Client use their own order form to make a purchase based upon price quote from Merchant, the terms and conditions contained herein shall be deemed primary, overruling any agreement incorporated within said Client purchase order or any implied contract. Print a copy of this TOSA for your records, but note current text posted online will be in effect should there be any dispute over terms of use. Should Client not understand or agree with TOSA, please email for clarification before purchasing Merchandise or using Merchant website any further.

Privacy and Security

Complete Client privacy and total security are primary concerns. We promise to never release Client information to anyone for any reason. This privacy policy extends to referral and reference requests. Rest assured, We will never give anyone your name and telephone number so they can call during dinner to ask about a product purchased from We promise you will never end up on a mailing list or get a sales call as a result of being one of Our Clients. secured server credit card processing service, that We have used for many years, has their own very strict privacy policy. is not given any access to credit card numbers during or after any shopping cart puchase made online with We reserve the right to refuse service to any potential Client at Our sole discretion without explanation.

Pricing and Payment

With the exception of the Servel gas refrigerators, only Colorado residents are responsible for paying state sales tax of 2.9%. You may be responsible for paying sales tax directly to your state revenue agency, but We do not collect sales tax outside of Colorado. We do not accept international credit cards, money orders or checks for payment and We do not ship into Canada or Mexico, Puerto Rico, Alaska, Hawaii or any off-shore or international destination. Merchandise advertised Free Shipping only applies to the 48 contiguous United States of America. Special Orders shipped outside the 48 contiguous states (HI, AK, PR, VI, Guam and APO/FPOs) require bank wire transfer payment (EFT) no other option, sorry. Will-call pickup at freight dock and drop shipments to a third party (receiver not being the credit card holder) are only possible with cashier check, US Postal money order or bank wire transfer EFT payment in advance. Email or fax 720-293-1705 with full shipping address and order details for a personal quote and payment invoice. Once invoice is completed, We can accept VISA and MasterCard orders online for fastest service or by phone at 800-563-9720, fax at 720-293-1705, email at Cashier's check, wire or US postal money order is recommended since they are treated as cash and orders ship immediately. Prices are subject to change without notice and do not include any applicable taxes (Colorado residents ONLY). On government and corporate accounts invoiced with payment due 'net thirty', the total amount must be received no later than thirty days after invoice date, not the Merchandise delivery date. Late payments are subject to a 2% monthly finance charge accrued from date of invoice. Package and individual Merchandise parts, components and product specifications are subject to change without notice. Special order items are bid on a case by case basis and quotes are generally good for thirty days unless otherwise notified. Price matching offers are only applicable before purchase is made, not after payment has been submitted for Merchandise. We offer only to price match advertised delivered cost for Kobe Range Hoods that ship via Fed-Ex Ground, not motor freight shipments on a pallet. We offer only to price match authorized Kobe dealers. Internet 'marketplaces' and auction sites commonly feature unscrupulous 'surplus Merchandise' retailers selling used, returns, and repackaged 'demo' units without proper disclosure. Unauthorized dealer surplus Merchandise is NOT covered under Kobe's manufacturer warranty and may well have hidden defects the surplus retailer will not cover. has long been an authorized dealer for Kobe Premium Series range hoods and We sell only brand new, factory-direct, fully warranted appliances.

Free 48 State Delivery

All shopping cart items are advertised as Free Shipping with no extra charge for delivery. Shipping and handling fees are factored into advertised total delivered price. Note shipping is only available to the 48 contiguous United States of America. We do not ship into Canada or Mexico, Puerto Rico, Alaska, Hawaii, Virgin Isles, APO/FPO mailboxes, or any off-shore or international destination. Inventory 'stock' items will ship within 2-3 business days from one of Our warehouses. Scheduled deliveries are not possible to arrange, but We automatically email tracking information after shipment, so you can anticipate delivery date. Motor freight deliveries do not include lift gate service to lower boxes onto the roadway, unless quoted with additional services. If need be, lift gate service to lower boxes onto roadway is available for an additional $65 to $100 fee. Street-side motor freight deliveries are not brought to your front door by the driver, like UPS and Fed-Ex package services. Client must meet motor freight truck deliveries on the street to unload and inspect shipments by hand before signing for Merchandise. Shipments must be accepted promptly within three days of arrival at local freight terminal or storage fees of +/- $50 per day, per pallet may apply. Any and all storage fees billed by trucking company are the sole responsibility of Client and must be reimbursed to Our company.

Fed-Ex and UPS Ground

Most shopping cart items ship via Fed-Ex or UPS Ground package delivery service. Package delivery services, unlike a motor freight carrier (see next paragraph), will allow us to file a hidden damage in transit claim for insurance reimbursement, but We are given less than a week to report it. Regardless of how well the exterior of container box appears, you must ALWAYS have the driver note ANY damage to shipping boxes in writing before signing. Then immediately, always take Merchandise completely out of its packaging and inspect ALL of the Merchandise, notifying us immediately should there be ANY hidden damage to Merchandise. Mechanical problems are covered under the manufacturer warranty, but hidden aesthetic damages (cosmetic dings, dents, broken Welds, significant scratches, or popped rivets) you discover than a week after delivery are not reimbursed or replaced by Fed-EX, manufacturer, Kobe, or Not saying that you or your Merchant caused the damage to the unit before or during installation, but that possibility exists when Merchandise is not properly inspected upon arrival. Additionally, any appearance (non-mechanical) flaws found after installation will not be reimbursed or replaced by freight carrier, Fed-EX, manufacturer, Kobe, or Merchandise that has been installed is not eligible for return or replacement by

Motor Freight Shipping

Servel refrigerators, Sun-Mar composters, larger custom shade panels and larger Kobe range hoods ship via motor freight 'common carrier', as noted on the website and receipt. Scheduled deliveries are not possible to arrange, but We automatically email tracking information after shipment, so you can anticipate delivery date.Common carrier motor freight is shipped on a pallet with boxes covered in clear plastic stretch-wrap and is defined as street-side motor freight drop, which differs from small package services like UPS and Fed-Ex, in that the truck driver does not bring Merchandise into your building or onto the porch. Street-side motor freight drop is a basic delivery service, often in a full-size tractor trailer, where driver parks in street while you unload and inspect the Merchandise. Kobe range hoods, shade panels, and Sun-Mar composters are not shipped with lift-gate service. You must unload boxes from the tractor trailer by hand. If you require lift gate service to lower the Kobe range hood down onto the roadway, with what they call a mechanical 'Tommy lift', it is available for an additional $65 to $100 fee. Please arrange and pay for this optional service at time of order. Always check the number of pieces (boxes) present against the stated waybill shipping receipt tally. As with any motor freight shipment from any distributor, be certain to carefully examine ALL of the Merchandise, not just the outside of shipping box(es), before signing and accepting delivery. It is imperative with motor freight shipments that ALL products be unboxed and fully inspected PRIOR to accepting delivery. Regardless of what the delivery driver may say, you MUST inspect fully before signing and accepting the delivery. It is the freight truck driver's job to wait while you open and inspect shipment for damages. Simply looking at the outside of the box(es) is NOT adequate. Damaged Merchandise (that particular box, not all the boxes) must be refused delivery. Once someone signs for shipment, it confirms Merchandise was received free of ANY damage and removes liability from the transportation carrier. We can only assume that damage reported later and not refused delivery, was caused by the Client, and not the freight carrier. Any subsequent attempt to file a claim for loss or damage will NOT be accepted by the transportation carrier, distributor, or Our company,

Returns and Cancellation

All returns, cancellations and/or exchanges must first be authorized in writing by at Client may not ship any Merchandise back until We supply return Merchandise authorization RMA number and address for the shipment. Orders often do not ship back to the same warehouse they shipped from originally. Contact us with invoice number and reason for return or exchange to obtain an RMA number and instructions. No returns, refunds or exchanges will be authorized more than 30 days after original purchase payment date. Design consultation services, DVDs, knit shade material, water tubes, greywater and septic system parts are not returnable for refund or exchange for any reason. Once payment has been made, custom panel orders are cut and enter the production system and cannot be cancelled after payment is made. No return on any remnants or discontinued items. Any authorized returns of Merchandise must be in the original carton, in new unused condition, and returned freight prepaid to Our designated warehouse. Merchandise originally shipped via motor freight carrier on a pallet, may not be returned via package delivery service such as UPS or Fed-Ex. Original actual shipping cost will be deducted from any refund due along with up to 15% restocking fee on the Merchandise. This restocking fee includes the 3% credit card processing on original purchase, which is not refunded by MasterCard or VISA. Please understand that items on Our website are advertised as "Free Shipping", which is to be understood as "there is no extra charge for delivery of PURCHASED Merchandise". UPS, USPS, Fed-Ex and motor freight carriers charge us a fee for delivery of Merchandise, which We must recoup on returns. Kobe, for instance, bills a flat-fee of $40 and $45 for business and residential Fed-Ex shipments and $162 and $186 for motor freight carrier drops. Sun-Mar and Servel units ship via motor freight carrier for anywhere from $120 to $300+ per unit, depending upon zip code and drop site designation. Kobe, Sun-Mar, Clivus Multrum, Quanics, Dometic and Servel returns are manufacturer-direct, drop ship items and may be subject to an additional manufacturer's restocking fee. Discontinued, clearance items are not eligible for return or exchange. If an item is returned without original packaging intact, or is damaged, found to be used, or otherwise not ready for resale, it may be refused and returned to sender at their expense, so always insure shipment.

Lost and Stolen Shipments

Tracking information is emailed following shipment on all orders so client can anticipate delivery date. Custom size shade panels are made-to-order and can take up to ten business days to produce and ship. All other 'stock items' normally ship within three business days. Should you not receive email shipping information, please send a request for tracking number in writing to: Note it can take up to 48 hours for a given tracking number to appear on transportation company website. During this time, shipment status may be listed as "order processed and ready for pickup". Traditionally, this just means the shipment has not yet reached transportation company terminal and scanned after being unloaded from truck that picked those package(s) up. Overdue shipments must be reported to merchant in writing within one week after anticipated delivery date. Cardholder hereby agrees that only two possibilities exist for a shipment that did not arrive as anticipated. Possibility #1) Transportation company shows shipment as still being in-transit. In this case, merchant will file a 'tracer' request on behalf of cardholder with transportation company and they will search for box(es) at all company freight terminals. Cardholder is required to fully cooperate by filling out any forms requested, returning any voice messages left, and replying to any email messages sent by transportation company or merchant. Your patience and consideration is required and greatly appreciated while transportation company attempts to find the shipment. Replacement or refund is authorized solely at merchant discretion. Cardholder is not permitted to cancel order. Cardholder is not permitted to dictate choice of replacement or refund. And cardholder is not permitted to dictate time frame for settlement and ultimate delivery date for merchandise. Possibility #2) Transportation company shows shipment as being delivered. In this case, merchant will file a 'lost shipment' claim on behalf of cardholder with transportation company. A lost shipment claim can take up to two weeks to resolve and unfortunately, the transportation company rarely, if ever, pays the insurance claim. Ideally, we only ship to cardholder, personally, at their residence or business 'home' credit card billing address, but regardless of designated drop site and receiving person and whether or not a signature was required at time of delivery, cardholder is solely responsible for merchandise security after drop is confirmed by transportation company. After transportation company confirms delivery to shipping address, no signature required, there will be no refund or replacement for lost or stolen merchandise for any reason. Cardholder must immediately file a theft report with their local police department for item stolen from property or designated drop site. Cardholder hereby agrees to relinquish any and all right to file a credit card chargeback sales reversal for merchandise lost in transit by transportation company or merchandise reported lost or stolen after delivery is confirmed by transportation company. Should cardholder file a chargeback in violation of this terms of service agreement, cardholder will be held responsible for reimbursement of any and all merchant services processing fees incurred as a result of the frivolous chargeback, which can be anywhere from $35 up to several hundred dollars.

Shade Panel Production

Our commercial grade knitted shadecloth carries a one year manufacturer's replacement warranty against defects in material and workmanship. You can expect at least 5 years of service when installed properly and well over ten years when used seasonally in a temperate climate. Client must inspect shade panels within one week of delivery in order to be able to report any damages. Rips, tears, and aesthetic damage you find more than one week after delivery are not reimbursed or replaced by the freight carrier or Additionally, merchandise that has been installed is not eligible for return or replacement for damage claims. Fabric is knitted polyolefin, primarily high density polyethylene HDPE, specially treated for durability and UV resistance. Wind damage from loose panel whipping, snagging, and abrading against the structure or cable framework is much more harmful in the long run than simple exposure to sunlight. Knit shade material should be installed hung underneath, not pulled across the top of cable or framework, to avoid abrasion and snagging damage. Chemical, fire, heat, abrasion, and snagging damage are not covered under manufacturer warranty. Shade panel warranty inspection returns must be authorized in advance and returned freight prepaid to designated location for visual inspection. will only pay the cost to ship warranty repaired or replaced merchandise back to client after inspection confirms damage was a material or workmanship defect. The following are trade-standard, non-valid reasons for requesting warranty inspection: First, there is no up-down, right-left, top-bottom or front-back reference point for any panel. Panel 'Width and Length' are measured from outside-edge to outside-edge of the sewn perimeter hem at the four corners only. Knit material has inherent tension and flex in the looming process that will resolve aesthetic issues when installed taut with rope lacing. Grommets on one side of panel are unlikely to line up with grommets on the opposite side or from one grommeted pinch pleat to the next. Exact one foot on-center grommet spacing, specific grommeted pinch pleat centering, and special placement on a particular side for grommets is not warranted. Any panel over 12 foot wide may have a noticeable factory knitted loom splice seam without notice in advance since the 20, 26, and 32 foot wide stock roll width fabrics are manufactured on side-by-side looms. We traditionally cover this seam with a grommeted pinch pleat, but it is possible to order plain cloth without a center GPP, per automated quoting form. Aesthetic issues are not warranted. For instance, the White 50% color knitted shade material can sometimes arrive with patches of orange discoloration and spotting as a result of the manufacturing process. This discoloration will dissipate after installation in the sunlight. Shade material may always be slightly wrinkled from rolling onto storage tube or shipping and knit appearance can vary from sample swatches presented and may also vary between various stock widths. Minor aesthetic flaws in knit appearance, stitching, and snags are not a structural panel failure problem and not warranted. Shade material is lockstitch knitted to prevent structural unraveling. Longevity is the same regardless of aesthetic appearance flaws in the fabric knit or perimeter webbing. If need be, one can use needle and thread to pull small flaws together and super-glue sealed. It is not considered a warranty-related defect unless it affects panel performance. Special fire resistant certified shade materials are not available. The finish 'Length' ordered is what we produce by cutting enough fabric to fold hem and GPP. The only time to anticipate deviation in finish dimension purchased is when 'Width' is a stock material width of 6, 8, 10, 12, 20, 26 and 32 foot. Then, finish 'Width' is likely going to be two to three inches less after folding and sewing perimeter hem and any length-wise grommeted pinch pleats. ALL other times, the size panel you request is the finish size we do our very best to produce. Knitted shade netting is inherently difficult to work with due to tension releasing when cut to custom sizes, so trade-standard warranty for free replacement is a four inch tolerance. As measured at four corners, any error of five inches, or more, is warranted for free remake, replacement, or refund at our sole discretion. This accuracy guarantee does not apply to shapes other than rectangles or any panel dimension over 32 foot. Errors of less than five inches are considered for remedy on a case-by-case basis only when the panel has not been installed and can be resold as a new-unused remnant. Special grommet placement requests are not warranted and grommet spacing at exactly one foot on center is not warranted. Click here for knit shade material engineering specifications and product MSDS sheet.

Warranty and Warnings

Merchandise purchased from is covered only under that product's manufacturer warranty. Client is solely responsible for presenting all claims under those warranties directly to the warrantor. makes no consultation, service work, or system design warranties, whether express or implied and shall not in any way be held responsible for any customer misuse of Our products or misunderstanding of any and all of Our designs, whether express or implied. All responsibility and liability for any and all damages caused by viruses contained within the electronic files of this site are disclaimed. All information contained within this site and supplied by any and all consultations, design work and service work is governed by the following information disclaimer. Be aware that septic tank effluent, composting toilet materials, and greywater alike contain bodily fluids and as such are regulated as Hazardous Materials by the Federal government. Such hazardous materials (raw sewage) should be handled only by licensed professionals trained in the proper safety procedures and using proper safety equipment. If you are unsure of the correct handling and safety procedures, please check with your local health department for more detailed information.

Installation and Liability

Merchandise purchased from or through must be installed by a licensed professional installer and in accordance with manufacturer's specifications and local/state/federal electrical, plumbing, health and building department regulations. Building department regulation requirements differ from one town to the next and it is the Client's sole responsibility to ensure compliance. This is particularly important with hard-wired electric kitchen appliances and hoods, gas refrigerators, septic systems, greywater projects, and composting toilets. Even shade panel installations can come under local regulatory scrutiny (pull permits) in some parts of the United States. Client understands that shade panels are not rated for any fire resistance and hereby confirms that no fire resistance has been expressed or implied by Seller for Merchandise. Client is solely responsible for purchasing (pulling), and coordinating all of the inspections for all of the necessary electrical, plumbing, grading, road, health and building permits for their project. Some of these services, as requested, can be provided to Our Summit County, Colorado Clients where is a licensed and insured general Contractor (license number 6) and septic system installer (license number 69). is not an architectural nor an engineering firm. We do Our best to consult on your project, but site specific engineering, load calculations, soil viability testing, and/or custom blueprinting are not included in any consultation service or system package We sell.

Art and Data Release

Client does hereby irrevocably consent to and authorize the anonymous use and reproduction by Us, or anyone authorized by Us, of any and all artwork, digital images, or stories submitted via email, phone or fax. Our primary concern is protection of your privacy. We never release Client information to anyone for any reason, so any use would be purely anonymous. We will not pay a fee or provide compensation of any sort, now or hereafter, for information, solicited or otherwise, that We share. Client hereby agrees to allow reproductions to be presented online or in printed format and hereby gives Us unrestricted right and permission to copyright and use, re-use, publish, and republish artwork, stories or digital images submitted without restriction as to changes or reproduction hereof in color or otherwise, made through any and all media now or hereafter known for illustration, art, promotion, advertising, trade, or any other purpose whatsoever. This agreement shall be binding upon Client and their heirs, legal representatives and assigns.

Information Disclaimer

The information from or through this site and from or through Architerra Enterprises, Inc. (d.b.a. The Natural Home Building source and is provided 'as-is', 'as available', and any and all warranties, express or implied, are disclaimed (including but not limited to the disclaimer of any implied warranties of merchantability and fitness for a particular purpose). We are not an engineering or architectural design firm. We are not licensed electricians or plumbers. We do not accept any legal liability whatsoever for any 'errors and omissions' perceived or otherwise. Any and all consultation given, or website information provided, may contain typos, errors, omissions, problems, or other limitations. Merchandise specifications are subject to change at any time by manufacturer without any advance notice from Our company or the manufacturer. Product specifications and installation instructions are likewise subject to possible error and may change at any time without Our knowledge. Blueprints, sketches, and any written consultation are provided for informational educational purposes only and not intended for construction-ready application without approval first by locally licensed structural engineer and local building department regulations. Our sole and entire maximum liability for any inaccurate information, for any reason, and user's sole and exclusive remedy for any cause whatsoever, shall be limited to the amount paid by the customer for the information received (if any cost was involved). We are not liable for any indirect, special, incidental, or consequential damages including but not limited to damages for loss of business, loss of profits, litigation, or the like, whether based on breach of contract, breach of warranty, tort (including negligence), product liability or otherwise, even if advised of the possibility of such damage. The limitations of damages set forth above are fundamental elements of this website, communications, and information provided without such limitations. No representations, warranties or guarantees whatsoever are made as to the accuracy, adequacy, integrity, reliability, currentness, completeness, suitability or applicability of the information to a particular situation. Complaints by Client to any rating agency, company review, or personal referral concerning Merchant or Merchandise in direct disregard of this terms of service agreement are to be considered libel and will be prosecuted as such, if need be.

Consultation and Service

Written and verbal consultation on the specifics of any project is governed by this terms of service agreement, with or without purchase of Merchandise. Technical assistance is different with us because Our staff members live with what We sell. Housing, septic, composting and greywater systems all include free on-going consultation, so We'll take the time to answer your questions and ensure your project is a success. At the very least, We strive to save you money by avoiding costly mistakes, both short and long term. If We don't have an answer to your question right on the spot, We'll take the time to research it further and get back to you. We can consult on the phone, if you wish, but email allows us to much more completely answer your questions with sketches and links to related articles. Keeping everything in writing is a sure way to avoid any confusion with "you said he said" situations later. Our sustainable housing products are low-tech in nature, but their design is typically complicated by the seemingly endless installation variables for unique locations and applications. Any and all consultation (blueprints, photos, written word and sketches) purchased from are the intellectual, copyrighted property of HTM house plans, septic system packages and greywater kit components Were designed and priced for the typical home and based upon the average soil type. Whether or not your local building department requires stamped engineer approval, you are well advised to take sample blueprints, sketch plans, and system consultation suggestions to a local professional engineer (PE). Local PEs are familiar with your soil type and more aware of unique building codes and concerns in your area. Most importantly, a local PE is readily available for the necessary site visits. your PE is then responsible for preparing a folder of notes and details which confirm the structural integrity, viability and liability for your project. is not an architectural design nor an engineering firm. We do Our best to consult on your project, but site specific engineering, load calculations, soil viability testing and/or custom blueprinting are not included in any consultation service or system package We sell. Communication is intended only for the paid Client recipient(s) and may be confidential and/or legally privileged and must be treated as such in accordance with state and federal laws. Any disclosure, copying, distribution or action taken in reliance on the content is strictly prohibited.

Fiberglass Water Tubes

Water Tube and Cap ("Item") is manufactured for Client on special order basis by an independent company ("Manufacturer"). Manufacturer's warranty and guarantee, and special terms and conditions of sale and delivery apply to this Item. No warranty or guarantee is provided, expressed, or implied by Merchant, Merchant and Manufacturer do not assume any liability or responsibility for damage in transit. Only the transportation company is responsible for damage in transit. Before signing and receiving Item from transportation company, Client should demand to see packing list from Item shipment. If shipment is short Item (for instance: three caps, not four) or damaged (any Item defects), refuse the goods until the transportation agent notes the shortage or damage in writing on the freight receipt waybill. Always require a copy of the annotated waybill with shortage or damage noted in writing and signed/initialed by driver.Watch for hidden damage and inspect all Items fully before signing and accepting the shipment from a freight carrier. Client signature is testament that Item arrived in the proper amount and in undamaged condition. Hidden damage or shortage (anything found after delivery) is Client's sole responsibility to file claim with transportation company. Merchant and Manufacturer do not assume any responsibility or liability for Item damage during/after installation. Manufacturer guarantees Item is up to its established standard of manufacture as to material and workmanship. In all claims, liability is limited to replacement of the invoice value of any Item claimed to be defective. Client assumes all risk and liability whatsoever resulting from the use of such Item, whether used singly or in combination with other substances. The materials purchased hereunder (Item) shall be examined and tested upon receipt thereof, and before the materials are used and within thirty days from such receipt, Client shall notify Merchant in writing of any claims on account of quality thereof. Failure to so notify Merchant shall constitute a waiver of all claims with respect to Item, and in any event the use of Item by Client shall be deemed to mean satisfactory performance on the Item and Merchant. No claim of any kind (whether as to Item delivered or for non-delivery of Item) shall be greater in amount than the purchase price of Item covered hereby with respect to which any damages are claimed. Merchant and Manufacturer will accept no returns unless previously authorized in writing with Return Merchandise Agreement. Item returned without RMA written permission is liable to non-acceptance and return at expense of Client. RMA will specify 25% restocking fee on Item, plus deduction for original cost of crating and shipping, plus Client is responsible for all return shipping arrangements and all related expenses. There are no promises, agreements, or understandings between Client and Merchant and Manufacturer not contained in this document. Should you use your own form to make a purchase based on a price quote from Merchant, the conditions contained herein shall be deemed to be incorporated in said order or contract or invoice.