Housekeeping · 절수·누수 점검

Check a silent toilet leak with a dye test in 6 steps

Add dye to the tank, wait 10 minutes without flushing, and look for color in the bowl; a leak needs follow-up.

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US EPA

Official source: Check a silent toilet leak with a dye test in 6 steps

Original-source link card from US EPA

A toilet can leak silently. EPA WaterSense describes a simple tank dye test for conventional tank toilets. Check the manual for tankless or special models.

Your try-it-at-home checklist

0 / 6 done

1. Confirm you have a tank toilet; if water is on the floor or near electrical bidet parts, do not dismantle it—seek professional help.
2. Pause toilet use and place the removed tank lid on a stable surface.
3. Add a few drops of food coloring or a toilet dye tablet to tank water; do not mix in cleaning chemicals.
4. Do not flush for about 10 minutes. Look for color in the bowl water.
5. Color in the bowl indicates a tank-to-bowl leak. Follow your model instructions to inspect the flapper, or call a plumber.
6. Flush immediately after the test to reduce staining and note the date and result.

Official source: Check a silent toilet leak with a dye test in 6 steps

Your try-it-at-home checklist

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