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.
Plant grass over the top of the leach field. You will probably find that the grass over your leach field grows better than the grass in the rest of the yard. Remember to avoid planting trees too closely to the leach field because of root invasion.he distribution box is attached to the septic tank by a 4-inch-wide pipe. The 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.