Originally Posted by
rdr
na one is the clean out for a felter at the head of the line to the drain feild gess the outher is a inspection hatch might be 2 tanks rd can't rember how it looked . i can find out if u need to know . i have 24 i/n of rock under my lines supposed to up my lenight of drain line to something like 300 feet . it works neaver cleaned the filter . yet robbie