Hello, I am doing my second floor bathroom renovation now. I removed all floor tiles and the toilet and have found my toilet drain pipe looks like this:
Question: After tiles are installed to fix my toilet flange for an old cust iron pipe-
Should I use external flange to repair it at it shown here:
or should I use the internal flange at it shown here:
Both of them have rubber ring which would expand and keep flange from rocking.
I DO NOT want to use an old lead method: