Removal of the aerator is necessary to remove sediment buildup in your Price Pfister faucet. The small holes inside the aerator disc can build up with water sediment and eventually lead to water pressure loss. Removing the aerator on your Price Pfister faucet is no different than removing an aerator on any other faucet. You do need to take some precautions, however, to not damage the finish on the aerator.
Place a rag or cloth on top of the sink drain. This will prevent you from accidentally dropping small parts inside the aerator down the drain.
Place a cloth around the faucet aerator on the end of the faucet. Twist clockwise to loosen the faucet aerator. If you cannot twist the aerator by hand, you will need to use a pair of pliers.
Wrap electrical tape around the separate jaws on a pair of slip joint pliers. Place the cloth over the faucet aerator and grab the aerator over the cloth with the pliers. Turn the aerator clockwise to remove the aerator from the faucet.
The electrical tape on the jaws of the pliers is a secondary precaution to prevent damaging the aerator finish. You can soak a cloth of white vinegar over the aerator to loosen sediment if the pliers do not work right away.