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Old 01-01-2016, 10:22 PM   #1
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Bonus room toilet still runs occasionally even after new hardware change?


I replaced the floating hardware and the rubber flapper in a toilet however it still occasionally runs.

I'm no plumber but I'm sure it was replaced properly.

Ideas?
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Old 01-02-2016, 05:24 AM   #2
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check the little fill hose if it is stuck in the overflow to far it can siphon.
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Old 01-02-2016, 05:43 AM   #3
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Close the supply valve and monitor the tank water level to determine if there is a slow leak at the flapper causing the occasional running. By doing this you'll be able to determine how severe the leak is.
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Old 01-02-2016, 06:39 AM   #4
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Install a Fluidmater 400LS leak sentry fill valve.
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Old 01-02-2016, 01:08 PM   #5
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Add food dye into the tank and see if it gets to the bowel. If it does you will need to replace the flush valve.
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Old 01-02-2016, 02:05 PM   #6
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Quote:
Originally Posted by rjniles View Post
Install a Fluidmater 400LS leak sentry fill valve.


I replaced the old with this one and a red Korkey flapper.
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Old 01-02-2016, 02:12 PM   #7
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Quote:
Originally Posted by imola ghost View Post
I replaced the old with this one and a red Korkey flapper.
You sure you used the LS model and not the regular 400 model? The way that think works id it holds the float in the up position until the flush lever is pushed.

As Ghost said, replacing the flush valve is probably best. You have to remove the toilet tank to do that. make sure you buy replacement tank bolts.
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Old 01-02-2016, 02:49 PM   #8
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Quote:
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You sure you used the LS model and not the regular 400 model? The way that think works id it holds the float in the up position until the flush lever is pushed.

As Ghost said, replacing the flush valve is probably best. You have to remove the toilet tank to do that. make sure you buy replacement tank bolts.


It does say 400 on the top of the floater so it might just be a 400 and not a LS.

Now I did not replace the flush valve, where you have to remove the tank. I replaced just the one going to the incoming water valve.
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Old 01-02-2016, 02:51 PM   #9
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I did go up and look at my install and it appears the water line was coming up to the very TOP of the pipe that feeds water to the bowl.

I adjusted it to be lower and hopefully this fixes the issue.
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Old 01-02-2016, 03:47 PM   #10
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If that doesn't solve it it's most likely the flush valve gasket leaking.
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Old 01-02-2016, 04:05 PM   #11
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If that doesn't solve it it's most likely the flush valve gasket leaking.
Not. If the flush valve gasket leaks, the water ends up on the floor.
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Old 01-02-2016, 04:18 PM   #12
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Not. If the flush valve gasket leaks, the water ends up on the floor.
Nope. The coupler gasket prevents that. You could flat out not install a flush valve and the water won't leak onto the floor.
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Old 01-02-2016, 06:37 PM   #13
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Also look for something stupid simple. Had one of these drove me crazy...would run fine for days, then for no reason, walk by and the toilet is still running an hour after it was flushed. The stupid chain that holds the flapper up would occasionally get caught under the flapper, allowing water to run into the bowl. Simple tweak of the chain and all set.
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Old 01-02-2016, 07:49 PM   #14
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Also look for something stupid simple. Had one of these drove me crazy...would run fine for days, then for no reason, walk by and the toilet is still running an hour after it was flushed. The stupid chain that holds the flapper up would occasionally get caught under the flapper, allowing water to run into the bowl. Simple tweak of the chain and all set.
I also loosened the chain one link as it seemed a little tight.
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Old 01-02-2016, 08:55 PM   #15
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Still leaking? Do the dye test.

Changing the flush valve flapper alone doesn't always solve a leaking problem. Check the seating surface under the flapper for wear or pitting around the seat. If its worn or pitted the flapper will never seal. Would need need to replace both pcs.
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