I woke this morning to a low pool level causing the skimmer to suck air and air bubbles coming into pool. It was fine yesterday evening. My husband backwashed the filter before we came in for the night. I checked to o-ring seal at the basket at the pump and there are no leaks anywhere that I can see. I checked the waste pipe and it has a small stream steady coming when the pump is on filter so I am thinking that this is the reason my water level in the pool is low. Even with the power turned off I can hear water moving until I turned it to recirculate. So now the pump is off and the multiport is set on recirculate to keep more water(and chemicals) from escaping. I filled the pool back to the correct level with a garden hose with cold well water. What do you guys think?