The short answer

Record whether the toilet runs continuously or refills between uses, and identify the model if you already have it.

Bright bathroom with a long double-sink vanity, large mirror, and bathtub beside a window.
Illustrative stock photo · Photo: Curtis Adams / Pexels · Pexels License

Keep the report observable

Ask when the sound began, whether flushing changed and whether there is water outside the toilet. Do not require residents to dismantle the tank. Link previous work so the contractor can distinguish a new symptom from an unresolved repair.

EPA identifies worn toilet flappers as a common source of leaks. [1]

A useful note is: “Tank refills several times between uses; no floor water reported.” The flapper is a possibility, not a diagnosis. Record the professional finding and the result after repair before closing the ticket.

Sources

This article was generated by AI using the sources below. Editorial standards.

  1. Fix a Leak Week — EPA WaterSenseSupports the attributed passage: EPA identifies worn toilet flappers as a common source of leaks. The practical workflow and labeled examples are the publication’s own applications, not source-reported cases. Source checked Sep 8, 2026.

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