Cleared a main line today, modular set a while ago, recently purchased by new owner, probably was in forclosure or close to it, never really occupied until now. Whoever hooked it up to the septic neglected to remove the glued on knockout where the modular plumbing ended and the septic installation began. Broke it out with a snake, pushed the pieces through to the tank with a camera. This is about the 4th time I've found something like this (a test ball or a knockout or something else they should KNOW was in there, not just debris that fell in a roughin) that the plumbers left behind on a new install.
No announcement yet.
How common is this?