After a somewhat hot weekend (for Wisconsin standards anyways) my cartridge filter now makes a decent humming sound when I fire it up. The sound takes a few seconds to kick in when the pump is fired up. This is my first summer with a pool (bought the house in May) so I am not only a rookie pool owner, but wasn't part of the setup that went down in 2012 or so of everything.
My first hunch was air in the system. When I twist the air release valve just water comes out, no air and the humming sound doesn't go away.
To make matters worse, I have a small dripping leak right before my pump, after the basket. Could these be related and is that how air is getting into the system?
I am just perplexed and after about 35 mins of messing around with both the leak and even taking out the filter and cleaning it yesterday...the sound and the leak still persist.
I made a YouTube video of it here if you want to see both problems in action: Waterway Filter and Pump Problems? - YouTube
Any help would be greatly appreciated!