Make this simple but accurate test to determine and measure the rate your pool water evaporates and to measure any water leaks.
Water leaks under your pool deck and shell can cause soil to compact and shrink away leaving the pool shell unsupported. This may cause decks to settle or shift resulting in a cracked pool shell. Settling and shifting decks are also the leading cause of cracked or separated underground pipes.
All pools, old or new, may develop leaks due to ground movement or settling, improper installation, faulty seals, or a host of other factors. The most common leaks we find are pool light conduits, main drain joints, skimmer and pool return piping joints.
Most people are surprised that a small 1/8 inch diameter hole can cause so much water loss. In a typical 20 foot wide by 30 foot long pool a one inch per day water loss is equal to approx. 370 gallons of water. Losing even small amounts of water per day results in diluted water chemistry which, over time, may result in degradation of the pool finish. The longer water is allowed to leak, the greater the chance of major damage.
The result is your water loss in gallons of water per day.
Example: A pool 20 ft long by 30 ft. wide is loosing 1 inch of water per day.
20 Ft. x 30 Ft. = 600 sq. ft.
1 inch water loss x .62 = .62
.62 x 600 sq. ft. = 372 gallons.