dave1949
Super Star Member
A while back, my buddy bought a foreclosed home and the septic wasn't working properly....we investigated, scratched our heads and eventually found there was a "Fernco" rubber coupler in the pipe between the tank and d-box. The ground had heaved and the coupler was still connected on each end, but it had stretched sideways so that the pipe ends were completely closed. It took a little digging to find it, but it saved him a LOT of money!
That was a good find. Maybe the pipe was sort of forced into position when it was originally installed, then the heaving allowed it to try and straighten itself. Like a spring under tension.
Dave.