I have two pumps that run, (were given to me) but don't seem to suck or pull water through. There is no suction side leak because I had tested them with a direct line running into my pool. Both motors run fine, but again just no suction. They have new lids and orings on the strainer baskets.
Both are Hayward pumps.
One is a Super Pump 1 HP and the other is a Max Flow 3/4 HP.
Q- what seal or seals would make these not work.