So I unplugged my Aquamaxx HOB skimmer to clean the cup out like normal and now it is not working. The pump is not working as strong as it was when I unplugged it. It's not taking in any new water and only barely filtering the water already in the skimmer. I took it completely apart made and made sure nothing was clogging pipes or stopping impeller from spinning but did not see anything. I have had this skimmer for a few months and it hasn't given me any problems and has been working great. Anyone have any ideas on what could be happening? Thanks for any advice in advance!