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.
While a septic system filters and cleans the waste water from your home, placing a pond too close to the leach fields can affect the pond's ecosystem.The extra nitrogen and phosphorus seeping into the pond from the leach field can cause an overgrowth of aquatic plants and algae.our local building permit office usually has a form that explains not only how to apply for a septic system permit, but also provides the minimum setbacks. In general, leach fields must be 100 feet from streams, rivers, water supply wells, oceans, lakes or reservoirs.