I have had my skimmer for about 3 months PSK-100 H and yesterday I was doing some dosing so I turned off the skimmer for the night (1st time I have done this). Once plugging it back in I had MAXIMUM OVERFLOW! I turned the adjustment down to nothing and was still getting overflow. I took the skimmer apart (not the pump) and gave it a good cleaning only to plug it back in and it do nothing. The prop spins but it is only creating a few bubbles and the water level wont increase in the chamber(even when i plug the air intake). It is currently in a vinegar and water solution. That looks to be so the suggestion per your instruction sheet (which looks like a 1st grader wrote, seriously who misspells "must" ). Any other suggestions?