It's an inground 20x40 vinyl pool with StaRite cartridge and StaRite pump MaxEPro 3/4 HP. pool is only 2 years old. nothing has changed with the valves or any other set up. It has worked beautifully up until this. it does sound like a clog somewhere. The psi is running at 7/8 when it usually runs at 10. I will shut pump off and dismantle everything and look for clogs. thanks for your help.

another subject. I just bought the poolSwim and an aquabot. does the poolswim stay permanently on? Can I use the aquabot with it on or do I have to dismantle it prior to using it?

thanks for all your help.