As you can see, there is black mold growing inside the white pipe under this shower drain cover.
I've removed the 2 screws. The silver metal circular grate still feels stuck.
If I try to pry it out with a screwdriver, it feels like I'm going to bend and maybe destroy it.
Are these threaded and screwed-in somehow?
How can I remove it?
Alternatively, how could I do a thorough cleaning of the pipe without removing it? (I've already tried vinegar and baking soda, which had no effect.)
P.S. It says UPC® on one side, Made in USA, and SC (where the S and C are on either side of an dual-triangle hourglass shape).