Septic Drain Field Design

A septic drain field is a vital part of any septic system.

Septic drain field design. Building a septic drain field is time consuming but pays off in the long run. The most common reasons for leach field failure are. An important soil characteristic the percolation rate measures how long it takes water to drop one inch in a saturated hole dug in soil. A septic drain field per se is a system under the surface that recycles wastewater.

1 inch in 3 minutes sandy soil. Trying to use a single compartment septic tank absence of a particulate filter under sized leach field and lack of leach field ventilation. 1 inch in 48 minutes clay soil. When you design your drain field there are a few things to keep in mind.

The name refers to the construction of the drainfield. Septic system images and sketches useful in understanding testing diagnosis pumping repair design defects alternatives inspection methods defects in onsite waste disposal systems septic tank problems septic drainfield problems checklists of system components and things to ask septic system maintenance and pumping schedules. Step 1 determine the size. A conventional septic system is typically installed at a single family home or small business.

Design guide for septic drainfields. Field size dimensions depth layout suggestions. The gravel stone drainfield is a design that has existed for decades. Not all septic systems are the same.

Oxygen is very important to leach field health and a drywell with surface vent at end of lateral line is an instant fix for that while greatly increasing the capacity and drying out the lateral lines. An improperly designed drain field will do nothing but cause huge problems with the entire system. The size necessary for your drain field will depend on a few. If placed in an area with good ground absorption a drain field can last up to 10 years.

With this design effluent is piped from the septic tank to a shallow underground trench of stone or gravel. Septic drain fields also called leach fields or leach drains are subsurface wastewater disposal facilities used to remove contaminants and impurities from the liquid that emerges after anaerobic digestion in a septic tank organic materials in the liquid are catabolized by a microbial ecosystem. Trench line specs detailed specifications leach fields gravelless systems deep trench systems shallow trench systems cut and fill systems absorption bed systems. The septic drain field s purpose is to keep the waste underground away from humans and the surrounding environment.

Septic tanks last from 15 to 30 years. Leach field or soakaway field size requirements for these septic system designs. If it takes less than 5 minutes for the water to drop 1 inch in a saturated hole the effluent will move too rapidly to be treated properly such as in sandy.