I have an older home that had leaks from the old custom built lead toilet bend. The bend itself was about 14" long and was connected into the horizontal cast iron arm to the cast iron stack. Entering into the sides of the bend at roughly 45 degree angles were two lead drains from a sink (about 6' away vented in the wall the sink hangs from) and a bathtub (about 2' away with trap but no vent).
Is it allowable anymore to try to recreate this using a closet bend going into a double wye with that running into the stack arm probably using a Fernco bushing?
Is it allowable anymore to try to recreate this using a closet bend going into a double wye with that running into the stack arm probably using a Fernco bushing?