This shows the "D Box" or Distribution Box. The liquids from the pump tank, pump up the hill to the D Box, then get distributed to the leach lines that are only about 3 feet underground. Basically, dissolvinginto the soil.
I drew lines to show where the leach lines, distribution box and the trenches are located.
Looking down from where the leach field.
Again, I tried drawing lines to demonstrate how the trench feeds up to the leach field and then gets distributed out. Because we only have a two bedroom structure, there was only two 26 foot lines required. But more will be added later when we build the house.