Be sure the pit’s lid has rubber seals, as this will be what keeps the lid secured tight. Also, check to make sure there are seals around the discharge and the vent line. More From Doityourself You May Also Like From Doityourself How to Remove a Septic Tank Lid By Tim Bossie How...
“At that stage I visited Professor Bill Hunt of North Carolina State University in America who is conducting research into Low Impact Sustainable Drainage (LID) systems for North Carolina’s government and when I returned we began experimenting with some of things he was doing. ...