transitive. 1  To reverse the winding or twisting of: unwind a ball of yarn. 2  To separate the tangled parts of; disentangle. 3  To free (someone) of nervous tension or pent-up energy.
A leach field is an important part of a septic system. It disperses fluid from the septic system over a large area of soil adjacent to the building it services.he distribution box has another pipe that leads to the leach field. From this pipe, you will dig the trenches. Decide where to dig your trenches. You will need to dig three trenches, each about 12 inches wide and 20 feet long.
Back in the days where it would take at least a week to build a drain field and cost a lot of money, I hated doing septic systems. Now it's a completely different story. It's easy to do and very cheap. The old design was to use a leach field or drain field system.It was a several step process which involved excavation, lining the ground with small stones, laying down PVC drain field pipe, covering the pipe with larger stones and then covering it all up with dirt. We don't do it that way anymore.t's easy to do and very cheap. The old design was to use a leach field or drain field system. It was a several step process which involved excavation, lining the ground with small stones, laying down PVC drain field pipe, covering the pipe with larger stones and then covering it all up with dirt.