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.
Considerations: Only use a holding tank if you do not want to install a septic tank or your yard does not have the proper âtile fieldâ for a septic tank installation. In general, the septic system is the more efficient and âmaintenance freeâ choice.hese are allowed in certain areas where building a leach field (or tile field) is not possible. Features: A septic tank is the most common type of underground sewage and waste-water system for any home where the typical municipal system does not reach.