How to Fix a Toilet Fill Valve That Keeps Running: Easy DIY Guide
Learn how to fix a running toilet fill valve by inspecting, cleaning, or replacing the rubber seal and adjusting the float for proper operation.
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Turn off the water supply to the toilet. Flush to empty the tank. Remove the fill valve cap and inspect the rubber seal for wear. Clean or replace the seal if necessary. Reassemble the valve and ensure the float is adjusted to the right height. Turn the water supply back on and check.
FAQs & Answers
- Why does my toilet fill valve keep running? A toilet fill valve keeps running usually because the rubber seal is worn out, the float is improperly adjusted, or there is debris preventing the valve from closing fully.
- How do I adjust the float on a toilet fill valve? You can adjust the float by either sliding it up or down on the fill valve rod or turning a screw, depending on the valve type, to control the water level in the tank.
- When should I replace a toilet fill valve? Replace the fill valve if cleaning or adjusting the seal and float doesn’t stop the running, or if the valve components are cracked, damaged, or leaking.