We have a half bath in our detached garage.
(The shower has not been used for 6 years. I had to take off plastic handle and use a wrench to turn the water on. And when I did, brown water ran for a minute. Hopefully I didn’t get Legionnaire’s disease. :) )
I had to take off the plastic handle because when I tried to turn it, it basically started spinning loosely in place. I think the internal plastic threads were stripped by the metal threads of the cartridge stem(? don’t know if that is what it’s called)
Also, I can’t turn the lever that controls the mixing of the hot and cold.
What are my options?
I know I need a new handle.
What about the stuck hot/cold? I tried some WD-40 on it and it helped a little bit. But it is still really tough to turn. I’m pretty sure that if someone tried using the plastic lever, the plastic would break.