I’m trying to figure out what’s going on with my pump. It’s a Hayward Pro Series sand filter. I have it on a timer, and manually turned it on this morning. There was no suction and the small filter that you prime next to the pump didn’t have water flowing around like usual. I tried re-priming it. Water gushed through, the skimmer became very low because it was really sucking the water in, and when I turned the pump off, lots of water came gushing out in the small filter. I’ve tried plunging with a plunger, but just air comes out. Is there anything else I could try before I have to call the pool company?