I've had one of those fluid master toilet float switches for 4-5 years
with no problems. But then it started to make a loud bang (water
hammer) when it would shut off. I replaced it with the same type.
After about a month, it did the same thing. I returned it for another
and again, this one worked fine for about a month until the water
hammer started again. I've since turned the toilet supply valve about
halfway closed to limit the water flow and solve the problem. But any
ideas as to why this is happening?
1. We have good county water and normally do not get any buildup of
2. It worked fine for years, and the other bath rooms are working
fine too (single story home).
3. No water hammer problems with showers, sinks, etc. - only this
toilet and only recently.