I opened our pool on Sunday, it was the worst green swamp it's ever been. I put three bags of shock and the next day it was a foamy mess. I'm not a big numbers person, but according to the strip I use, everything is good, except calcium hardness is low. I added no algaecide. This is only from shock. The pool store seems to think I have an air leak. Could this be the case. The foam is getting better--slowly. Here are some pics. First one is right after taking off cover Sunday and last one today.
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