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.
leach 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.ee an animation of the septic tank leach field process here. When a septic tank backs up into your house, damage to the leach field is already done. 1  The sludge layer has overflowed the baffle in the tank. 2  That sludge has run into the leach field.