We opened on Friday, it was our first opening since the pool was installed last July. Everything went smoothly. Last night when I shut off the pump the water from the pump appeared to go back up into the skimmer basket, forcing the lid almost off. After a second this stopped. It happened again today. This time water didn't actually shoot out of the top of the lid but I noticed everything in the skimmer basket, (dead bugs) shot back into the pool and the basket was flipped upside down in the wall skimmer. I don't remember this happening last year. The only thing I can think of is that my water level is a little high. Anyone know what is causing this? The presssure on the filter is 15 which is what it has been since we opened. Any thoughts?
It almost seems like the pump kind of "throws up" back into the pool when I shut it off. Sorry for a gross visual.