Step 1 of 5 · Fix a Running Toilet in 30 Minutes
Dye test and listen
Dye test and listen — step 1 of 5 in Fix a Running Toilet in 30 Minutes. Remove tank lid. Add food coloring to tank water. Wait 15 min without flushing. Color in bowl = flapper leak.

Free home & diy tip: Dye test and listen (step 1 of 5 from "Fix a Running Toilet in 30 Minutes").
Remove tank lid. Add food coloring to tank water. Wait 15 min without flushing. Color in bowl = flapper leak.
Constant trickle sound = fill valve running. Water above overflow tube = float too high.
You'll need
- Dye test done
- Leak type identified
- Shutoff located
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