InspectAPedia®   -   Search InspectApedia

Gravel less effluent disposal septic system - Chamber system - image courtesy US EPA, originally from National Small Flows ClearinghouseGravelless Septic System Product Suppliers Directory

Gravelless setic system sources:

Where to buy gravelless or no-rock septic system materials: this article discusses product suppliers for gravelless or "no gravel" or "no rock" septic drainfield systems.

InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.

Sources of Gravelless Effluent Disposal Systems

SKETCH of a typical chamber system for gravelless wastewater disposal - illustration courtesy of Infiltrator Systems, Inc.

Gravelless septic systems or "no gravel" septic system trenches use plastic or other prefabricated wastewater distribution systems which are buried in soil without the use of surrounding gravel. Typical gravelless septic systems use a plastic chamber, a geotextile-wrapped pipe, or a polystyrene-wrapped pipe to distribute effluent into the soil.

The necessary soil absorption area is provided by the perforated surface of the gravelless septic system components (or by soil at the bottom of a chamber) themselves rather than by the gravel and trench walls of a conventional septic drainfield.

These systems can provide an acceptable effluent disposal system for sites with limited space for a drainfield or where gravel is not available or is quite expensive.

[Click to enlarge any image]

This listing of suppliers of gravelless or "no rock" septic system components is arranged alphabetically.

The illustration at above left shows a typical residential gravelless wastewater disposal system using chambers.Illustration courtesy of Infiltrator Systems, Inc., used with permission. (Infiltrator Systems Inc. contact information is listed below).

ADS SB2 Gravel-less pipe for drainfields cited & discussed at InspectApedia.com

Infiltrator Systems' Arc 24 no-rock chamber system septic product - cited & discussed at InspectApedia.com

Above: Infiltrator Systems' Arc 24 Chamber "no-rock" septic system product. [Click to enlarge any image]

Infiltrator systems no-rock septic effluent disposal system EZFLOW(R) using fabric & a synthetic modular aggregate instead of gravel - cited & discussed at InspectApedia.com

Gravelless or "no-rock" septic system designs are discussed in detail at GRAVELLESS SEPTIC SYSTEMS - design and installation specifications

InspectApedia.com has no financial or other relationship with any suppliers listed at our website and we do not endorse specific products. No fees or costs are involved in product source listings. CONTACT us to add information.

...

Consultants or supplies in this field can be listed at our alternative septic designers page at no charge by contacting us.

 




ADVERTISEMENT





Reader Comments, Questions & Answers About The Article Above

Below you will find questions and answers previously posted on this page at its page bottom reader comment box.

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs

On 2020-04-11 - by (mod) -

Rickey and Anonymous:

"Gravelless" or "no-rock" septic systems such as those described here do not use gravel in the leaching area.

On 2020-04-11 by Anonymous

Needing know what type grave used. The size.

On 2020-04-11 by Rickey

What type grave use on leach bed

On 2019-05-31 by Jeff

5 bedroom, perc @approx.7min. Per inch. Chamber system how many do I need. How many trenches??

On 2018-07-13 - by (mod) -

Apologies Paul but I'm unclear on what product you want to use for your septic absorption system. "Biodome" is a bit of a broad term that usually refers to a completely-enclosed, isolated environment that, within its interior, attempts to simulate a complete earth-like eco system. That would be an incredibly expensive approach to a home septic system and surely isn't what you're asking.

However IF you are asking about how to size a gravel-less or "no-rock" septic absorption system, you need first to check what is allowed in your country and city or state or province.

Watch out: when sizing any septic drainfield you should NOT rely on a generic drainfield size guess for any approach, whether gravelless or other systems. To install a system that will work and that can handle the anticipated daily wastewater flow rates you MUST consider both the average daily wastewater volume and the soil percolation rate - the rate at which your soils at your site in the absorption bed location will accept and dispose of effluent.

Watch out also: for both site restrictions (size, shape, property boundaries, distances to streams, lakes, buildings, etc., and for local code restrictions such as limits on the total length permitted for individual soakbed drain lines. So if the calculation such as in our example below shows that you need 600 feet of absorption trench, you will most likely not be permitted to run that as one single long line.

To give a general idea of what a graveless system manufacturer describes as typical site sizing we quote below from an established graveless system producer, CPP or Crumpler Plastic Pipe

ASTM-F-481 septic installation specification should be reviewed prior to installation. Some states allow Gravelless large diameter systems to be substituted for conventional systems in Any Soil Type deemed acceptable for a conventional system. Others do not. One should check with local septic inspectors for locally approved soils. Iron Ocre proned organic soils and fine silt soils are examples of unsuitable soil types for fabric wrapped pipes.

CPP’S No-Rock™ septic systems maybe substituted for any conventional 4” pipe gravel trench system utilizing distribution devices, serial distribution, hillside or stepdowns. However, it should not be substituted for bed systems or installed in fill material. It should also be limited to domestic sewage, and not used where there will be large amounts of grease or oil such as in restaurants unless designed by an engineer.

The 8” size pipe will equal to 2-foot wide conventional trench; and the 10” size will equal a 2.5-foot wide trench. To determine the required linear footage of either pipe size, first determine the square footage by dividing the design sewage flow by the appropriate soil’s long term application rate. Then divide this total square footage area figure by either 2 feet (for 8”) or 2.5 feet (for 10”) to establish the linear footage amount. Per chart below, on center (oc) spacing is determined by actual trench width.

Example:

A 3-bedroom house on a loam soil

0.6 gpd/ft 2 = loam soil’s long term application rate.

3BR x 120 gpd = =360 gpd
360 gpd ¸ 0.6 gpd/ft 2 = 600 ft.

600 ft 2 ¸ 2 ft = 300 linear ft of 8” or
600 ft 2 ¸ 2 ft = 240 linear ft of 10”

- retrieved 2018.07/13, original source: www.cpp-pipe.com/no_rock.html

On 2018-07-10 by paul

I have a 3 bedroom home with 2 bathrooms and I want to put biodome in how many feet of biodome do I need for this house

On 2018-01-29 by Robert Gollehon

What is the most cost effective drainfield type?
What are the different tyes?

Is there someone that I could email with questions?

Thank you,

Robert
odhelena1@gmail.com

On 2017-05-30 by Chinh

Where can graveless leachfield be bought in Seattle?

On 2016-12-18 by Sally miller

Where can graveless leachfield be purchased in Orlando Florida

On 2016-10-22 - by (mod) -

Excellent question David.
Check with the Arkansas Department of Health, since the state maintains a list of approved septic system component suppliers.

See http://www.healthy.arkansas.gov/programsServices/environmentalHealth/OnsiteWastewater/Documents/ApprovedList.pdf

On 2016-10-22 by David Stone

Where can gravelless leachfield lines be purchased in the Hot Springs Arkansas area?


...

Continue reading  at GRAVELLESS SEPTIC SYSTEMS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

Or see these

Recommended Articles

Suggested citation for this web page

GRAVELLESS NO-ROCK SEPTIC SUPPLIERS at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.


Or see this

INDEX to RELATED ARTICLES: ARTICLE INDEX to SEPTIC SYSTEMS

Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia

Ask a Question or Search InspectApedia

Questions & answers or comments about how & where to buy gravelless or "no-rock" septic system products & materials.

Try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly.

Search the InspectApedia website

Note: appearance of your Comment below may be delayed: if your comment contains an image, photograph, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. Apologies for the delay.

Only one image can be added per comment but you can post as many comments, and therefore images, as you like.
You will not receive a notification
when a response to your question has been posted.
Please bookmark this page to make it easy for you to check back for our response.
Our Comment Box is provided by Countable Web Productions countable.ca

Comment Form is loading comments...

Citations & References

In addition to any citations in the article above, a full list is available on request.



ADVERTISEMENT