 # Calculate your swimming pool water loss in gallons per hour Calculate your swimming pool water loss in gallons per hour

When you suspect your pool is leaking and you want to know how many gallons of water it is losing, by using data from a bucket test and the dimensions of your pool, you can figure out how many gallons per hour or minute your pool is losing.

### Calculation examples:

#### Example #1:

A pool owner says his 18×27 pool is losing 2 inches per day. How many gallons is the pool losing per day?
The formula is: L (x) W (x) WL (x) .6233 = Gallons Lost

The given values are: L = 32′ W=18′ WL=2″

Plugging the values into the formula we have:
32 (x) 18 (x) 2 (x) .6233 = 718.04 gallons

The 718 Gallons lost also gives you an idea of how big the leak is that you are looking for. The example also means that they are losing:

• 29.9 gallons per hour! (718 divided by 24) and …
• 0.498 gallons per minute! (29.9 divided by 60)

That’s two quarts per minute! What size stream of water would it take to fill a quart container in one minute? About the diameter of a pencil.

#### Example #2:

A spa owner says he has to add 1.5 inches of water daily to his 12′ diameter spa. How many gallons of water is the pool losing? The formula for round pools and spas is:
Diameter (feet) (x) Diameter (x) WL (x) .48929 = Gallons Lost

The given values are: Diameter= 12 feet WL= 1.5 inches

So, plugging the values into the formula, we have:
12 (x) 12 (x) 1.5 (x) .48929 = 105.69 Gallons lost in 24 hours

Use the swimming pool water loss calculator at americanleakdetection.com to find out how many gallons per hour your pool is losing due to leakage.

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