Ok, so I got a toughie on my hands and hoping someone has a suggestion, because I’m stumped. I have a customer with a shower stall in a basement, on concrete. The shower drain has become loose. It’s been leaking for some time and has created extreme mould issues. Anyway, the person who installed it botched the install and now I’ve been called in for a solution. They used the Oaty push seal shower drain, but for some reason discarded the rubber seal that goes around the pipe, jammed a coupling in there and glued it. So now the top part will not turn so I can remove it and reseal the drain. To make matters worse, the fixture outlet pipe is hub to hub with the ptrap, so I can’t even cut it out. As a temporary solution, until I figure out a permanent one, I’ve caulked the drain. She has had two showers and luckily no leaks. But I’m stumped on how to make a permanent fix. Any suggestions would be greatly appreciated!