I think I've got some blockage in the suction side piping. I just opened up my pool and was cleaning out some debris from the bottom of the pool and vacuuming to waste. The suction went away and I went and emptied the basket and started the pump back up to very little pressure. I opened the drain valve and water rushed in and suction was good. When I closed the drain valve again, suction cut off and very little water is coming into the pump.
Any suggestions as to the best way to clear the blockage if that is the problem? Is a snake my best bet?