We had a couple of leaks in the bathroom that showed up in the drywall in the kitchen. We have gutted the bathroom believing that we had a clog in the pipes. THe plumber tells us that the soil stack which has some rust spots and a small hole that we can see should be replaced from attic to basement. We are wondering how much of the stack must be replaced. The soil stack has an elbow in this bathroom which is located on the second floor.. where we can see the rust and hole. How much MUST we replace? We didn't anticipate having to replace every piece of plumbing in the bath. This house was built in 1917 and updated in the 30's. Also, is it appropriate to ask for a bid on this work?
Thanks for your help!