Common swimming pool pump and filter problems and easy repairs:

Sudden decrease in water flow rate
Symptom: Obstructions in the supply line, preventing water from being pulled into the pump.

Repair: Shut the pump off immediately, to prevent it from overheating and burning out. Check for blockages in both the pump and the skimmer strainer baskets.

Swimming pool pump runs but doesn’t pump water
Symptom: Low water level in the pool; a clogged filter; damage to the impeller inside the pump; air leaks in intake lines.

Repair: If the pump is hot, shut it off immediately to avoid burnout. Check the water level and add more water if needed. Check the filter, and clean or replace it. If the pump still does not work, call a technician to check for impeller damage or air leaks.

Leaking pool pump
Symptom: A deteriorated seal around the pump shaft.

Repair: Replace the seal according to the instructions in the owner’s manual.

Noisy pool pump
Symptom: An oversized new pump, which is trying to discharge more water than is coming in; something jammed inside the impeller of an old pump.

Repair: If the pump is oversized for the piping system, switch to a smaller pump. If the pump is an older one, check the impeller and remove any obstructions according to the owner’s manual.