Hello Everyone!!! I just came home today and decided to check on my filter and pump. It runs automatically on its own when I'm at work, but I just wanted to make sure everything was working okay. Anyway when I went to turn it on there was a lot of air the pump. I have my manual valve opened to the main drain and skimmer. When I close it off to the skimmer the air goes away, when I open it back up to both air shoots into the pump and filter. I went over to the skimmer and the water was very low when I'm use to seeing it filled in the skimmer area. I'm new to owning a pool, but my first guess was that the pool level was low. I'm not sure if that would make sense so that's why I wanted to ask everyone on here. What are you thoughts if any, any help is appreciated.