Hey everyone, as the title suggests I'm new to pools but I have done some research beforehand. However, in my experience the best learning comes from joining a forum.
I have a few problems with the pool like the lights not coming on which is what I assume a bad GFCI. I was told it was leaking but have yet to do a "bucket test". There is more but for now I don't want to make this too long.
To start, I put a picture labeled with 1,2,3 which I still don't know what it could be. I am thinking 3 might be a fill valve? I will have to remove box 2 to see inside. 1 I have no idea. The bad GFCI can also be seen. Anyone know what 1 is? I tried to put as much info I could get in the signature as requested in forum rules. Thanks in advance.