Fluidmaster toilet fill valve. Change seal or whole valve

[TomYoung]

I have never had one of the diaphragm valves fail to shut off. The fill time just gets longer and longer and there are, ahem, "occasions" when a 5 minute cycle time on flushes is inadequate.

I will assure you as a forty year homeowner, that you experience is unique or your perception is wrong, or you are using some awesome hardware I am not familiar with. Valves failing to shut off, the constantly running toilet, is a very, very common failure.

 

[TomYoung]

i have a few old fluid master toilet fill valves laying around . So it seems its the top seal that goes bad in them and it can be replaced in 30 seconds . i saw a kit on amazon 10 for $15 .

Anyone ever just change the top diapram on one?

In this case, i would say that once the lid comes off the tank, I am replacing more than a crappy piece of rubber. In fact, the repair will get the parts cannon, if a trip to Home Depot is involved. Think about it: if this filler valve is finished, how much life is reasonably left in the flapper?

 

[factorytuned2012]

In this case, i would say that once the lid comes off the tank, I am replacing more than a crappy piece of rubber. In fact, the repair will get the parts cannon, if a trip to Home Depot is involved. Think about it: if this filler valve is finished, how much life is reasonably left in the flapper?

Fill valve and flapper go hand in hand i never replace one without the other

 

[TomYoung]

Once I switched - wish I’d marked the date bcs the Korky valves have lasted a long time for me …

I have used them, and acknowledge domestic sourcing, but not sure they are any better.

 

[4WD]

I have used them, and acknowledge domestic sourcing, but not sure they are any better.

I am