Pool Leak Detection

Distinguish between normal evaporation and structural/plumbing leaks using the scientifically-proven Bucket Test.

What is the Bucket Test?

Place a bucket of water on a pool step so the water is partially submerged. Mark the levels in both the pool and the bucket. Wait 24 hours. If the pool level drops more than the bucket level, you have a leak.

Bucket Test Measurements

Test Window

Start

End

Pool Surface Area

sq ft

502000

Pool Level Drop

Measured in inches

Before

After

Bucket Level Drop

Measured in inches

Before

After

Conditions

Avg Temp

°F

40105

Weather

Wind Speed

mph

040

Pool Profile

Construction

Equipment Age

Pool Age

years

050

Water Costs

Water Rate ($/gal)

0.0010.05

Sewer Rate ($/gal)

00.05

Underground Leaks

90% of leaks are not in the shell, but in the plumbing. The most common failure points are the glue joints at the skimmer throat or return jets, where ground movement stresses the PVC pipes.

The 1/4″ Rule

It's normal to lose water. However, if you are losing more than 1/4 inch (0.6 cm) per day in addition to normal evaporation, you almost certainly have a leak that warrants professional detection.

Dye Testing

You can confirm a structural crack yourself. With the pump OFF and water still, squirt a small amount of pool dye (or food coloring) near the crack. If the dye gets sucked into the crack, you've found your leak.