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.

Sources of Gravelless Effluent Disposal Systems

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 Pipe, SB2 Pipe, multiple locations in the U.S. & Canada, Website: https://www.ads-pipe.com OPINON: Good luck trying to find a corporate headquarters address or contact information at this horrible webstite.
  
  Excerpt: SB2 gravel-less leach bed pipe system can be a cost effective alternative to conventional leach beds.
  
  The piping is comprised of eight or ten inch single wall corrugated polyethylene pipe with uniquely located perforations wrapped with ADS Drain Guard® and non-woven geotextile.
  The outside diameters of the pipe provide an infiltrative soil absorption area. The location of the drain holes (60 degrees off the bottom center line) provide equal distribution along the entire trench.
  
  The Drain Guard protective wrap is sonically welded to the corrugated pipe and allows free passage of effluent to the soil while limited soil particle infiltration.

• ADS ON SITE SEPTIC SYSTEMS PRODUCT DESCRIPTIONS [PDF] retrieved 2019/02/11 original source: http://www.pmstp.com/img/pdf/en/10265_On-Site_Septic.pdf
  
  ADS - ARC 18-24 LEACHFIELD INSTALLATION GUIDE [PDF] for ADS ARC 24 leach field Chambers
• CPP: Crumpler Plastic Pipe, Inc. provides fabric-wrapped drainage piping 800-334-5071 Roseboro NC USA - Website: http://www.cpp-pipe.com/no_rock.html "No-Rock TM Septic-Leachate drainpipe systems" are available in 8" and 10" systems.
• CPP’S No-Rock ™ Fabric Wrapped Septic Pipe [PDF] (2019) Crumpler Plastic Pipe, .O. Box 2068, Highway 24 West, Roseboro, NC 28382 USA, Tel: 1-800-334-5071
  Email: cppsales@cpp-pipe.com retrieved 2019/02/11 original source: www.cpp-pipe.com/no_rock.html
• Elgen, Website: http://www.eljen.com/Pages/In-Drain/Idmain.html, In-Drain from Elgen is a combination of plastic and geotextile used to treat septic effluent.
  
  Elgen products have been around for decades using variations on this design. Elsewhere I've recommended their drainage mat systems for foundation waterproofing and other site drainage problems.
  
  Eljen In-drains: this no-rock septic system uses gravelless trenches containing prefabricated units of geotextile fabric and cuspated plastic spacing cores are bordered on the sides and beneath by six inches of specific sand media, and are covered with native soil.
  
  A layer of protective fabric is placed on top of the units to prevent fine soil particles from clogging the filter fabric pores.
• Hancor Gravelless "Blue Stripe" Pipe Website: http://www.hancor.com/product/Gravelless_Septic_Design.html Tel: 888-FOR-PIPE
  
  8" and 10" diameter. Quoting the manufacturer, "When backfilled with native soil, Gravelless pipe provides safe and effective septic tank effluent treatment in sites determined to be suitable by your local health department.
  
  The performance of gravelless systems has been verified through independent research performed at the University of Minnesota. This research evaluated the long-term acceptance rate of fabric-covered corrugated pipe for eight different soil types, and the pipe performed well in all soils tested except fine sand. Gravel-filled trenches in fine sand would likely perform in a similar manner.

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

• Infiltrator Systems, Inc.provides chamber products TEl: 800-718-2754 Old Saybrook CT USA. Website: http://www.infiltratorsystems.com/
  
  Infiltrator has \offices aroudn the world, including Algeria, Belgium, Canada, Chile, Columbia, France, Mexico, Morocco, New Zealand, Puerto Rico, Spain, and the United States.
  
  Infiltrator Systems provides state specific design manuals for no-rock chamber systems for specific states in the U.S.
• Infiltrator Systems ARC 24 CHAMBER SPECIFICATIONS [PDF] Op. Cit.,
  Website excerpt:
  
  Infiltrator’s recycled plastic septic chambers are engineered for strength and performance, easy to install, and have greater design flexibility (including a smaller footprint) as compared with stone and pipe.
  
  The advantages of Infiltrator chambers add up to cost savings on labor, materials and time savings on the job.
  

• Infiltrator Systems also provides their EZFLOW filter-fabric-wrapped round bundles for effluent distribution, in a range of product sizes and capacities. [shown above]
  Website excerpt:
  
  The Infiltrator EZflow septic system is an environmentally friendly replacement to traditional stone and pipe drainfields using an engineered geosynthetic aggregate modular design.
  
  The gravelless EZflow system is designed to improve drainfield performance by eliminating the fines and reducing compaction and embedment associated with stone.
  
  Preassembled units include a 3" or 4" perforated drain pipe surrounded by aggregate and held in place with durable, high-strength netting.
  
• WA DOH, GRAVELLESS DISTRIBUTION PRODUCTS [PDF] (2014) Washington State Department of Health, Northeast Tri County Health District 240 E. Dominion Ave. Colville, WA 99114USA, Tel: (509) 775-3111, retrieved 2019/02/11 original source https://www.netchd.org/fileadmin/user_upload/Environmental%20Health/Onsite%20Sewage/Guidelines_and_Standards/OSS-_Standards_and_Guidance_for_Gravelless_Distribution_Products-_September_2014.pdf
  
  These documents include gravelless septic system design standards, operation and maitnenance guides, construction information.
  
  GRAVELLESS EFFLUENT DISTRIBUTION PRODUCTS [PDF] (2013) Recommended Standards and Guidance for Performance, Application, Design, and Operation & Maintenance,
  
  Washington State DOH, Wastewater Management Section, Post Office Box 47824 Olympia, Washington 98504-7824 USA, Tel: 360.236.3330 FAX: 360.236.2257 Email: wastewatermgmt@doh.wa.gov retrieved 2019/02/11 original source: https://www.doh.wa.gov/Portals/1/Documents/Pubs/337-005.pdf
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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.

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

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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?

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