MASTER TOILET UPSTAIRS RUNNING CONSTANTLY REPLACED BAD FLAPPER, AND FILL VALVE UPGRADED ISOLATION VALVE TO A 1/4 TURN WITH A NEW SUPPLY LINE UPSTAIRS GUEST SHOWER NOT CONSISTENT TEMPERATURE WHEN USED REPLACED MOEN POSITEMP CARTRIDGE WITH NEW CLEANED SCALED BUILD UP AND FLUSHED DEBRIS FROM VALVE INSTALLED NEW CARTRIDGE AND TESTED FOR FUNCTIONS AND LEAKS REINSTALLED TRIM