Peanut Pipe Septic

The Infiltrator EZflow Septic System is an eco-friendly alternative for traditional pipe and stone drainfields that utilize geosynthetic aggregates engineered to a modular design. The gravel-free EZflow design is intended to enhance drainfield efficiency by eliminating fines, and reduce the compaction and embedment that are associated with stones. The pre-assembled units come with the 3″ and 4″ perforated drain pipe that is surrounded by aggregates and held in place by durable high-strength netting.Inlet and Outlet Pipes: The wastewater that comes from your house enters the septic tank via the pipe inlet. When the solids are dissolved in the tank, the effluent exits the tank via the outlet pipe, and then is discharged into the drainage field. It is recommended that the outlet pipe be at least 3 inches above the pipe that is used for inlet.

A few years ago, when new technologies for drain field were made available I was eager to integrate them in my system of septic. The companies that developed these technologies claimed to offer better efficiency, while also reducing the amount of labor required when building. I was thrilled to witness an increase in production , while also getting substantial labor saving to my customers. It was later discovered that the promise made by the manufacturer of better performance was not realized. The new technology presented unexpected issues a few years after the construction. These new technologies were advanced attempts to substitute the well-tested and reliable drain fields made of pipe and rock that have been in operation throughout the day and night out, for over 100 years. The scientific basis of these new technologies was logical however their actual performance was subpar. The surprising failure rate of other drain field systems was initially modest, but has gradually increase year after year. While some might have a ‘acceptable’ rate of failure in what they are doing, we don’t. I’ve always thought that an appropriately maintained septic system to last for at least 25 years in the soils of our area. If I noticed that was not being achieved, I decided to give up the options that would save me time and returned to building drain fields made of rock and pipe for the rest of my life.I think that one of my main tasks is to connect my septic systems in the hands of educated owners of septic systems. This starts with teaching the owners on the construction and materials. Certain septic systems have the standards of top quality, but unfortunately there are many that do not. There are many options to build the septic system, and yet comply with a minimum state-approved. It is important to be aware of the items are used for your septic construction. Take note of the source, should someone try to sell you a different product that is approved by the State of California. The person who is selling this less expensive alternative product won’t be compelled to accept the results even after they’ve received their money.

Poly-Rock is a sand-based aggregate with engineered flow channels that boost capacity. This results in a higher flow rate of 30% higher than pipe and gravel.

EZ-Flow is installed without gravel, thereby saving time over pipe and gravel systems. It’s light, allowing installation without the need for heavy equipment.


The most important thing in an efficient sanitation system is a correctly built concrete tank for septic. The tank should be designed to accommodate at least twice the maximum daily flow according to the design parameters of the system. The concrete tank should be equipped with an upward-facing riser that has the lid near the surface of the ground. I’ve seen many broken and hazardous metal and plastic tanks for septic. It is not a good idea to drive a fully loaded mixer truck into their septic tank but it does happen. Contemporary concrete tanks equipped with modern fittings and pipes made from plastic typically last longer than a few owners, and possibly even drain fields.

The most crucial element of a top-quality septic system is a rock-and-pipe type drainage field (or the leach line). There are many, less quality, non-septic drain field types that are in use currently. The two most commonly used types comprise hollow, plastic chambers that have slots in the walls and polystyrene foam peanuts that are bundled into the form of netting that is wrapped around a perforated pipe. I’ve constructed Septic systems using both of these designs. From my experience that neither will be able to compete with the performance of the rock-and-pipe.


Where can I find Local Installation Code and System Designs and Product Technical Questions answered?

There are many installation requirements and options that are controlled by local codes established by health departments within the area you live in. If you are unsure, consult with your local health department to find out the specifics and follow their code guidelines.

In What Systems Can Ezflow be installed?

The EZflow system can be utilized in virtually any septic leach field or bed for leach. In any place where pipe and stone may be installed, EZflow may be utilized. This includes bed, trench and elevated mounds. EZflow delivers the best treatment options in the areas of pressure distribution serial distribution, evapotranspiration and sand filtering.

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