Up until yesterday, my Haward Super Pump moved my Navigator cleaner up walls and super fast. I changed the filtering basket since the old one was broken, and now, the pump pressure is very weak.
1. Regardless of the valve open (suction, main, and skimmer), the pump's basket only fills up about halfway and the cartridge filters pressure reading stays at 0.
2. The suction cleaner moves, but very slowly.
3. When I turn the pump off, a rush of water fills the pump's basket completely. The water comes from the return side.
4. I stuck my hand in the basket's hole that goes toward the pump's motor to clean it out as much as possible.
From number 3 I deduce that perhaps something is stuck in the impeller or elsewhere.
What can i check in the pump? How?