Drainfield Media and Design

The design of the drainfield encompasses decorative covers and vent covers that are on the surface and require pleasing aesthetics, and dripline and media that is below the surface, requiring durable workmanship. Here are some of the latest offerings designed to keep drainfields operating correctly.
Drainfield Media and Design
HDPE pipe-leaching system

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The design of the drainfield encompasses decorative covers and vent covers that are on the surface and require pleasing aesthetics, and dripline and media that is below the surface, requiring durable workmanship. Here are some of the latest offerings designed to keep drainfields operating correctly.

HDPE pipe-leaching system

The GEO-flow HDPE Pipe-Leaching System from Advanced Drainage Systems promotes an oxygen-rich environment for increased biomat activity. It is comprised of a 10-inch-diameter, single-wall high-density polyethylene (HDPE) corrugated pipe surrounded in a polypropylene grid, both encased in geotextile fabric. This creates equal distribution and enhances the biological reduction of wastewater before it leaves this gravelless pipe system. The system’s test-proven treatment capability supports system sizing reductions in many states. 800/821-6710; www.ads-pipe.com.

AIRVAC-enabled vent filter

The Dirty Bird vent pipe filter from BS Design Corp. has been tested at the AIRVAC facility to serve as a concealment device for residential AIRVAC 4-inch vents, covering unsightly pipes protruding from an otherwise traditional landscape. It includes a matching birdbath basin that threads into the pedestal top. Installation is an easy three-step procedure, requiring the time to cut the current 4-inch vent at 22 inches above the ground, and placing the unit over the vent pipe. A stainless steel screen is installed to accommodate the flow requirements for the AIRVAC system. 866/968-9668; www.thedirtybird.com.

Spider valve assembly

The Spider Valve assembly from Clarus Environmental is designed for effluent distribution when regulations require pressure splitting or when a small lot requires lateral lines of unequal length. The valve is available in models ranging from two to 10 laterals and mounts in a 24-inch-diameter access riser. The 2-inch-diameter Schedule 80 PVC manifold has an accessible clean-out
for equal pressurization and maintenance. Each valve assembly includes 5/32-inch predrilled washers and union. 800/928-7867; www.clarusenvironmental.com.

Decorative septic lid cover

The 108 Model decorative rock enclosure septic lid cover from DekoRRa Products is designed to fit over lids up to 25 inches diameter and over risers up to 4 inches in height. It has a realistic RealRock detailed design available in four colors, and includes plastic stakes for securing it to the ground. It includes a built-out area to assist with covering junction boxes attached to the side of risers or lids. Weighing 10 pounds, access and routine service or pumping is still easily achieved. It won’t fade in the sun or crack in cold weather. It is constructed out of recyclable materials. 888/635-8585; www.dekorraproducts.com.

Dripline irrigation system

The Wasteflow dripline irrigation system from Geoflow is placed directly into the soil, at the plant’s root zone, so effluent is released slowly and uniformly to be digested and absorbed safely. It can be used on difficult sites, including shallow soil profiles, steep slopes, limited setbacks or poor soils. ROOTGUARD molded into each emitter protects against root intrusion, while its Geoshield component protects against biological buildup. 800/828-3388; www.geoflow.com.

Leaching system

The GST Leaching System from Geomatrix Systems uses a removable form to accurately shape and construct leaching fingers along the sides of a central distribution channel. It’s constructed with 3.4-inch washed stone and is surrounded with ASTM C-33 sand. The narrow profile of the leaching fingers and central distribution channel, combined with the uniform profile of the sand treatment media, enhances oxygen transfer efficiencies, resulting in more thorough treatment of wastewater pollutants and a longer lasting leachfield. It can be configured with standard gravity, pressure and/or time dosed distribution. 888/764-5247; www.geomatrixsystems.com.

Versatile chambers

Quick4 Plus Chambers from Infiltrator Systems provide unobstructed infiltration into soil in a variety of drainfield applications. They are available in standard, low-profile and high-capacity models, and have a Contour Swivel Connection permitting 10-degree turns, right and left. They come in easy-to-handle 4-foot lengths for quick installation. The All-in-One Endcap can be used at the end of a chamber row or installed mid-trench to allow for a center feed. Inlet pipe connections to this endcap include the sides, ends and top. No stone or textile is required for installation. 800/221-4436; www.infiltratorsystems.com.

Low-volume dripline

Bioline polyethylene, low-volume dripline from Netafim is debris-resistant, continuous self-flushing and pressure compensating. It delivers a precise application rate into the soil over a broad pressure range, and has an impregnated antibacterial to prevent microbial slime buildup. It doesn’t require special handling or storage, and no chemicals are required to protect against root intrusion. It is available in three flow rates and several dripper spacings for virtually any soil type. Its ability to precisely deliver the effluent without the imbalance of trench and pipe layouts make it well-suited for environmentally friendly areas, tight soils, slopes, odd-shaped areas and for those wanting to use the effluent for beneficial reuse. 888/638-2346; www.netafimusa.com.

Passive septic system vent

Septic system vents from Pagoda Vent Company passively ventilate on-site system components. They work in conjunction with the roof vent as air intakes, creating a draft through the system that clears gases and pressure within the system. They preserve concrete component integrity by diminishing microbial induced corrosion. The vents aesthetically blend into the landscape, are lightweight and will not fade or rust. An optional odor control filter cartridge is concealed in the unit. 888/864-1468; www.pagodavent.com.

Rockless drainfield system

The Multi-Pipe (MPS) Rockless drainfield system from Plastic Tubing Industries uses corrugated pipes to replace voided areas within a gravel system. It provides a reduced footprint, lower profile, and increased transpiration and evapotranspiration area. All configurations are constructed with recycled materials. 407/298-5121; www.pti-pipe.com.

Distribution boxes

Versatile distribution boxes from Polylok allow installers to choose the height of inlets and outlets. They come with a seal that accepts 2-, 3-, 4-inch and corrugated pipe (the 20-inch unit accepts 6-inch pipe). The 12-inch unit comes with stabilizing feet to anchor the box. 877/765-9565; www.polylok.com.

Passive treatment system

The passive Advanced Enviro-Septic system from Presby Environmental uses large-diameter pipe surrounded by fibers and fabrics to create an ecosystem that digests wastewater contaminants. Its Bio-Accelerator fabric speeds up the development of the biomat and allows for linear distribution. Without utilizing electricity or moving parts, the system is a passive, low-maintenance treatment and dispersal option for consumers and professionals. 800/473-5298; www.presbyenvironmental.com.

Flow divider/director

Flow Divider/Directors from Quanics serve as stationary two-way splitter valves, containing a central weir, evenly splitting flow between fields. Their swivel action serves the dual purposes of evenly splitting or alternating flows between two lines. Alternating is ideal in situations where dosing and resting cycles of a treatment and disposal field are required. 877/782-6427; www.quanics.net.

Aerobic bacterial generator

The S-600 aerobic bacterial generator from SludgeHammer is certified by the International Association of Plumbing and Mechanical Officials Research and Testing Inc. and to NSF/ANSI Standard 40 as an advanced treatment system for residential wastewater. It is engineered for subsurface drip disposal. It uses microbes to process waste in the septic tank; then the organisms migrate to and remediate clogged leachfields. Complete digestion of effluent means nothing remains to create a biomat. It is an alternative to repairing or replacing failed absorption beds. 800/426-3349; www.sludgehammer.net.

Orifice shield

Orifice shields from Sim/Tech Filter prevent drain media, such as drain stone, from blocking discharge holes to keep pressurized systems distributing effluent evenly. Their sturdy design keeps them firmly in place after snapping them on the laterals. The large amount of open area between the pipe and the shield allows for easy placement over the holes and reduces media clogging by debris. All openings are small enough to prevent media from entering the shield. Two styles are available – one for top-discharge distribution holes and one for bottom-discharge holes. Shields are available to fit 3/4-, 1-, 1 1/4-, 1 1/2-, 2- or 3-inch pipe. 888/999-3290; www.simtechfilter.com.

Self-cleaning vent filter

The Sweet Air Filter self-cleaning D-Vent filter from Tuf-Tite eliminates offensive odors from roof vents. It uses activated carbon to remove offensive odors, with heat from the sun automatically cleaning and refreshing the unit. It comes with a removable cap for easy carbon replacement, and fits 2-, 3- and 4-inch pipe, with custom sizes available. 800/382-7009; www.tuf-tite.com.


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