Septic Drain Field Design Construction

Field size dimensions depth layout suggestions.

Septic drain field design construction.

You will want to choose a site that is away from the house but close to the tank. A conventional septic system is typically installed at a single family home or small business. If placed in an area with good ground absorption a drain field can last up to 10 years. It is an essential part of the sewage disposal system.

Trench line specs detailed specifications leach fields gravelless systems deep trench systems shallow trench systems cut and fill systems absorption bed systems. Step 1 choose your site. The drain field is also known as leaching beds or absorption field. The septic tank may last for 20 to 30 years but drain fields do not normally last that long unless they are well designed treated with a bacteria supplement and the gravel structure and internal pvc remain intact.

With this design effluent is piped from the septic tank to a shallow underground trench of stone or gravel. The name refers to the construction of the drainfield. 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.

The field should be at least 10 feet away from your edible garden and any water such as a lake river or well. 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. Building a septic drain field is time consuming but pays off in the long run.

The gravel stone drainfield is a design that has existed for decades.