Having a hard time getting hold of plumbing inspector, would appreciate a reality check on SOP here:
I plan to dig up asbestos tiles (HEPA mask, negative air pressure etc) and dig a channel through concrete 20' to where waste line comes into the house....cut the line with an angle grinder....have a demo crew smash up and remove the clay pipe.....put down PVC and connect with no-hub fitting just inside the wall.
Is this what you would do on such a job? I just don't want to ever have to dig up this floor again, since I'm planning to tile eventually. There's no room to manouvre around where the various waste lines connect into the main waste line, taking out the whole line in a perverse way seems the most straightforward approach. Though there is a scary spot where I'll be working close to one of 2 4x4s (no footings!) supporting the kitchen. I will do what I can to spread the load there.
Is there any point in bringing in a back-hoe and digging up the waste line in the front garden? That'll mean digging up the drain lines I had put in only a year ago, and have to dodge the gas line....
If I replace clay pipe with PVC, the weight of the CI waste stack will now presumably all rest, permanently, on the framing via stack clamps. Is this SOP? One clamp sufficient or struggle to get a second in? The framing will have to be shored up until more permanent reinforcement is installed, which ironically is how this whole project started....
Thanks for any advice.