Diagram Septic Tank Drain Field Layout

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

Diagram septic tank drain field layout.

A septic drain field is a vital part of any septic system. A conventional septic system is typically installed at a single family home or small business. An improperly designed drain field will do nothing but cause huge problems with the entire system. Field size dimensions depth layout suggestions.

The gravel stone drainfield is a design that has existed for decades. Gravel less drain fields have been widely used for over 30 years in many states becoming a conventional septic system technology replacing gravel systems. Design guide for septic drainfields. The home s sewer line drain pipe needs to slope 1 4 inch per foot downhill to the inlet side of the septic tank and the outlet pipe needs to flow downhill at least 1 8 inch per foot downhill to the leach field where the septic tank effluent enters a manifold or distribution d box.

The name refers to the construction of the drainfield. Leach field or soakaway field size requirements for these septic system designs. The size necessary for your drain field will depend on a few factors. Gravel stone design drain fields are relatively larger and thus may not be suitable for all residential sites or conditions.

When you design your drain field there are a few things to keep in mind. Trench line specs detailed specifications leach fields gravelless systems deep trench systems shallow trench systems cut and fill systems absorption bed systems.