
consists of long underground perforated pipes or tiles connected to a septic tank. The network of pipes is laid in gravel-filled trenches (2-3 feet wide), or beds (over 3 feet wide) in the soil. Liquid waste or effluent flows out of the tank and is evenly distributed into the soil through the piping system. The soil below the drainfield provides th...
Found on
http://www.oasisenviro.co.uk/Glossary%20C%20to%20E.htm

an open area, the soil of which absorbs the contents of a septic tank.
Found on
https://www.infoplease.com/dictionary/drainfield
No exact match found.