I lived in SW Florida, lived in same home for 20 years that has a well. The shower water is coming out very slow. I have replace the head, that did not work. I took of the head , poured vinegar down it, thinking there is a clog of mineral deposits, it still is clogs. The water comes out of the tub faucet very strong, so it is from the that faucet up. Any help, would be deeply appreciated.