I was trying to hook up a vacuum and turned the pump off cuz there was air in the hose. When I tried to turn it back on it hums like it always does but the water doesn't start circulating. Any thoughts what I can check? My water is sparkling but I was just starting shock process cuz my cc is at 1. If I don't get it working I'm going to have a full blown algae outbreak. The pump is 6 days past a year old and I'm guessing had a 1 year warranty. Go figure. Please oh wise ones help me. Thank you!