The Shurflo is a good pump. They are an industrial grade pump and are serviceable. Yours isn’t necessarily a “bad” one. If yours has a removable base plate on the pump, pull it off and check to see if the impeller is turning and still secured to the shaft. A lot of times grit or plumbing shavings, (Most usually associated with a new delivery) can migrate to the pump and hang up the impeller. If you do find your pump works but you don’t get water to the faucet, double check the screen. Sometimes those don’t seal together correctly and let the system draw air. If not together correctly they’ll usually leak a little water when the tank is full and the pump is off. Good luck.