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Toilet runs all the time

    1. Check that the flapper valve is sealing properly against the flush valve seal when closed. Adjust if needed.
    2. Make sure stopper seal is clean and clear of any debris or buildup preventing proper contact.
    3. Check fill valve float arm and adjust if set too high, allowing water to enter overflow tube.
    4. Inspect the chain connecting the flapper valve to the flush handle and adjust slack so it is not holding valve open.
    5. Examine fill valve for cracks or defects causing water to leak through. Replace fill valve if faulty.
    6. Remove toilet tank lid and inspect all gaskets and washers for cracks. Replace as needed.
    7. Consider replacing flapper valve and other internal components if toilet is older.
    8. Check that water supply line filler hose washer is in good shape and replace if worn out.
    9. Clear out debris from the siphon jet hole if partially blocked, preventing siphoning.
    10. Listen for hissing air leak in valving indicating bigger problem.
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