Understanding Water Balance

Understanding Chemicals || The Pool House || Water Testing || Measure Pool || Balance Guidelines

How to know just how much fun your pool holds.

Water testing and correcting potential problems can't be accurately done if you don't know how much water your pool holds. Plus, you can end up spending a lot more in chemical treatments in the long un. Here's a simple method for measuring the number of gallons in your pool.

First of all, you need to determine your average depth. The simplest method is to tie a string that's been marked off in feet to a weighted object and measure the deep end, then the shallow end. Add these two numbers together and divide by two to get your average depth. Use your average depth number in the following calculations to determine your pool'a capacity:

For Rectangular Pools

Length x width x average depth x 7.5 = Total gallons.
Example: A pool that's 30 feet in length, 15 feet wide and has an average depth of 5 feet holds 16,875 gallons.

For Circular Pools

Diameter x diameter x average depth x 5.9 = Total gallons.
Example: A 18-foot round pool with an average depth of 5 feet holds 9,558 gallons.

For Oval Pools

Long diameter x short diameter x average depth x 5.9 = Total gallons.
Example: If the long diameter is 30 feet, the short diameter is 15 feet and the average depth is 6 feet, the pool holds 15,930 gallons.

For Irregular-Shaped Pools

It's best to consult the pool builder or ask your PoolGear Plus expert for assistance.

View the full size Understanding Water Balance portion of our "Pool Care Tips" manual.