This shower fixture was installed when my south Florida home was built in 1984 and I've owned it for 20 years. Keeping it working properly has been a challenging DIY learning curve. I've replaced the cartridge and adjusted the flow more than once. I've a few questions for the pros:
- What indicates that cartridge replacement, rather than adjustment, is required?
- How long should a cartridge last and what triggers the need to replace?
- What is the likelihood that a plumber could replace this fixture without damaging the surrounding tile? An exterior wall backs the fixture.
- What questions should I ask of a plumber to determine their capability to replace the fixture without collateral damage to tile, if at all possible? I understand that this cannot be guaranteed by anyone. I am not prepared to re-tile the shower enclosure at this time.