How to Inspect / Replace Bathtub drain flange
This is related to another thread I started, but I didn't want this question to get missed. In my effort to try to squelch a leak, and in the event that it's coming from the drain flange (doubtful???), I'm wondering just how difficult this is. I was told that it's basically an unscrew and replace. I'll attach a picture of my drain below. Is there any kind of gasket to be aware of or plumber's putty?
Hopefully my leak isn't leading up to a full replacement of two showers. I think the plumbing in this house was installed by a first-timer. GRR!