Do you know how many gallons of water is in your pool. Below is a chart that can help you identity how much water you may have.
Most in-ground pools have a variable depth. The chart below assumes a depth of 7′ at the deep end and 3′ at the shallow end. In addition, the Oval, Grecian, and Kidney shapes vary so the chart below is an estimate only
In Ground Pools |
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You can use the following formula for calculating the number of gallons of water you’ll need. Round pool: Take the Diameter times Diameter, times the average depth, times 5.9. For example, for an 18 ft. pool 4 ft. high you would multiply 18 x 18 = 324. Then 324 x 4 = 1,296. Then 1,296 x 5.9 = 7,646.4 gallons needed. Oval pool: Take the length times width, times the average depth, times 5.9. For example, for an 11′ x 30′ pool 4 ft. high you would multiply 11 x 30 = 330. Then 330 x 4 = 1,320. Then 1320 x 5.9 = 7,788 gallons needed. Rectangular pool: Take the length times width, times the average depth, times 7.5. For example, for a 12′ x 24′ pool 4 ft. high you would multiply 12 x 24 = 288. Then 288 x 4 = 1,152. Then 1,152 x 7.5 = 8,646 gallons needed
Above Ground Pools
How to calculate the Water Volume of a Swimming Pool using Charts or a CalculatorWhy do you need to know you Pool’s Water Volume? In order to figure out proper doses of chemicals for your pool, you need to accurately determine how many gallons of water it holds. To do that, you need to know four different numbers: the length, width, average depth, and a multiplier for your type of pool. Here is the formula: Length x Width x Average Depth x Multiplier = Volume in US Gallons Determine the Multiplier: – Rectangle, Square, or Free-Form pool: Multiplier = 7.5 Determine the Average Depth: To determine the average depth in a pool where the bottom slopes, measure the shallow end, the deep end depth. Add them together and divide by two (2). Example: |
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