Puting in new kitchen and the old waste arm broke off. I need to replace it and the threaded end is still in the old "tap tee" ( not sure if this is what it is called, but it attaches to the waste stack and vent stack..some sort of caste iron or something with a threaded insert for the waste arm) Anyway, since the wall is open..how to I replace this thing and attach a new waste arm......just a novice here..
Thanks, Rick
Thanks, Rick