How to Calculate Swimming Pool Volume in Gallons

Here is how to figure  out the Gallons in a swimming pool:

Measure the swimming pool. You will need the overall length, width and the depth in both the shallow end and deep end.

The formulas below assume you are measuring in feet, and want results in gallons.

For a Rectangle Pool:
(Deep End + Shallow End) / 2 = Average Depth
Average Depth x Length x Width x 7.48 = Volume in Gallons

For a Round Pool:
Depth x Diameter squared x 5.9 = Volume in Gallons

For a  Free Form Pool:
(Deep End + Shallow End) / 2 = Average Depth
(Width A + Width B + Width C + …) / (number of measurements) = Average Width
Average Depth x Length x Average Width x 7.48 = Volume in Gallons

An Example for a Rectangular Pool:

    Average depth (3’ to 8’ deep)
        3 + 8 = 11
        11 / 2 = 5.5
        Depth as in the example above
        40 feet long, 20 feet wide
        5.5 x 40 x 20 x 7.5 = 33,000 gal.


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Solar Pool Pump Videos – Introduction, Assessing and Installing

YouTube – Lorentz Solar Pool Pump Product Training Videos

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A Solar Pool Pump video made by a homeowner

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Florida Solar Pump now carries the Lorentz Solar Pool Pump line

Ft. Lauderdale, FL, March 16, 2013 –(– A new advancement in solar power technology is enabling swimming pool owners to take their pumps off the electrical grid, save thousands of dollars – and help the environment.

Lorentz-Solar Pool Pump badu-top-12Bahamas & Caribbean Pool Owners Take Their Pumps Off the Power Grid

Solar-powered pool pumps from Florida Solar Pump can help consumers save up to 30% on their monthly electric bill. Installing the energy conserving devices also may qualify customers for federal tax credits. At the same time, removing the traditional AC electric pool pump from power grid can prevent up to 11,500 pounds of pollutants from being released into the atmosphere each year, said Brian Ashworth, founder and president of Florida Solar Pumps, the Fort Lauderdale, Florida-based distributor of the solar pool pump.

“Depending on the size of your pool, the savings on the electric bill can top $85 a month or more,” Ashworth said. “You’re talking about up to a 15% return on investment each year, or almost $1,000 a year on your electric bill.”

With a two-year warranty (with an option of up to five years) and 10-year life expectancy, the maintenance-free DC brushless pump can add $15,000 to the value of the average home. The solar panels are sturdy and long-lasting – with a 20- to 25-year warranty. The pumps are strong enough to power automatic pool cleaners and circulate pool heater output.

Florida Solar Pump supplies product throughout the Bahamas and the Caribbean. This includes the Turks & Caicos, Jamaica, the Dominican Republic, Puerto Rico, the Cayman Islands, and the U.S. Virgin Island and the British Virgin Islands. In fact, those with homes, property or relatives in the Bahamas or Caribbean quickly can realize significant savings. With electricity topping 40 cents per watt, hotel, resorts and homes with pools throughout the islands are ideal for solar pool pumps, he said.

“Solar-powered pool pumps are the source for clean, green and cost-efficient energy,” Ashworth said. “Our environmentally-friendly solar panels and pumps circulate pool water from sun up to sun down for free – saving money every month and the climate every day.”

To learn more about the financial and resource savings found with solar pool pumps, visit or call (888) 282-2119.


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Florida Solar Pump LLC is an authorized distributor for Lorentz Solar Pool Pumps in the USA and the Caribbean.

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