A toilet that keeps running can drive up your water bill, in addition to the constant noise. The good news is that most issues come down to two items: the flapper and the fill valve.
You can easily replace each one by following the steps outlined below. The first step is to diagnose which item needs to be replaced.
In general, if the toilet is running infrequently, replace the flapper. If it’s running continuously, replace the fill valve.
To confirm your diagnosis, turn off the water to the toilet. The water can be turned off at the valve where the supply line comes out of the wall or floor. Turn the valve clockwise to turn off the water.
Once you turn the water off, if the tank starts to empty out, it’s the flapper that needs to be replaced. If the toilet stops running as soon as you turn the water off, it’s the fill valve that needs to be replaced.
Now that you know which item to replace, let’s walk through the steps:
How to replace the toilet flapper:
The toilet flapper is easy to replace. They come in two sizes, two or three inches, and you can find them at any home retail store. In general, older toilets use a two inch flapper, and newer ones use a three inch one. If you’re still not sure, just measure the current one before buying a new one.
Once you have the new flapper, here’s how to replace it.
5. Install the new flapper.
Be sure the new flapper closes completely and that the chain is relaxed with a little slack.
Test it out by turning the water back on and flushing the toilet a few times.
Now let’s review how to replace the toilet fill valve:
Replacing the toilet fill valve requires a few more steps than replacing the flapper, but you can do it by following the steps below.
Finding a replacement fill valve is easy since nearly all toilets use the same type. Just select a universal fill valve at your home retail store.
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