Is My Pool Leaking? How to Do the Bucket Test

Quick answer: To tell a leak from evaporation, do the bucket test. If the pool loses more water than a bucket floating beside it over 24 hours, you likely have a leak.

How to do the bucket test

• Fill a bucket to about the pool level and set it on the first step
• Mark the water level inside the bucket and on the pool wall
• Run the pump for 24 hours and compare the two drops
• Repeat with the pump off

How to read the results

• Pool drops more than the bucket: likely a leak
• Drops only with the pump on: suspect pressure-side plumbing
• Drops with the pump off too: suspect the shell, fittings, or suction side

When to call a pro

Evaporation varies with heat, wind, and sun. If the test points to a leak, call a leak detection professional for pressure testing.