Septic Tank Drainfield Design

Septic trench line specifications.

Septic tank drainfield design.

The septic tank digests organic matter and separates floatable matter e g oils and grease and solids from the wastewater. A septic drain field a septic tank and associated piping compose a septic system. Unfortunately drain fields also known as leach fields do not last that long. In its basic form a septic system consists of a septic tank where solids settle and decompose and a drainfield where liquid discharged from the tank is treated by bacteria in the soil.

Infiltrator septic tank pricing and installation tips tricks. Septic drainfield design basics. A typical septic system consists of a septic tank and a drainfield or soil absorption field. Building a septic drain field is time consuming but pays off in the long run.

In the article index you ll find articles on how to find the septic tank distribution box and drainfield. The soil should. Step 1 determine the size. 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.

A conventional septic system is typically installed at a single family home or small business. When you design your drain field there are a few things to keep in mind. On 2020 04 20 by howard my septic system is 48 years old. As waste water flows from the septic tank it flows out through the holes into the gravel and then seeps into the soil.

How far is the drain tank from the septic tank. If placed in an area with good ground absorption a drain field can last up to 10 years. Soil based systems discharge the liquid known as effluent from the septic tank into a series of perforated pipes buried in a. The size necessary for your drain field will depend on a few factors.

It has an 8 pipe with holes only on the bottom and surrounding this pipe is a. A septic system is the most common method of sewage treatment for homes and businesses that are not connected to an area wide sewage system. A decentralized wastewater treatment system consisting of a septic tank and a trench or bed subsurface wastewater infiltration system drainfield. Infiltrator im series septic tank pricing manuals design tips and specification sheets.

Drainfield design varies by areas of the country but here are some of the types you may see. The gravel stone drainfield is a design that has existed for decades. An improperly designed drain field will do nothing but cause huge problems with the entire system. 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.

Septic tanks last from 15 to 30 years. 1 inch in 3 minutes sandy soil. This style of drainfield pipe is a little diffrent. An important soil characteristic the percolation rate measures how long it takes water to drop one inch in a saturated hole dug in soil.