I just opened the pool after a long leave of absence and I have my pool work cut out for me.
I see through the transparent cover of the pump that there's air in the line. Also, I discovered a pin head size hole in the steel casing of the DE filter. The casing looks a bit rusted from outside.
I don't think that this hole can be responsible for so much air leaking.
I have two questions:
1. How to cover the hole permanently? Maybe an epoxy glue?
2. How to find the origin of the leak?
My equipment is described in the signature. It’s reasonably basic.