I'm trying to replace my old drain cover with an SDX Retro. But I can't get the old one off. There's no screws in the screwholes, and I've tried to twist it off, but no luck. Do you think it's glued in place? Anyone familiar with this type of cover?
Worse comes to worse, I'll get a hammer and chisel. (Yes, I'm renting scuba gear -- just need to find my PADI card...)