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.
1 When the water exits the septic tank it travels down another pipe to the leach field. 2  At the leach field the water divides up into several pipes where it exits into the ground through small holes in the leach field pipe. 3  This water soaks through the gravel bed of the leach field then is absorbed.each field the fewer bacteria you will have present there, and bacteria is what will open the clogged. parts of your leach field to restore flow. Steps you can take to help your septic system recover. 1  Use a septic tank treatment regularly to eat away the clogs in your leach field. 2  Please see our CHEMICALS page.