Swimming pools are the perfect addition or centerpiece to any backyard or outdoor space, especially during the hot days of summer. However, they require proper maintenance and care to keep them functioning at their best. One of the most essential parts of a pool is the pump, which circulates and filters the water. But, how do you determine the right size variable speed pump for your above-ground pool? In this post, we will walk you through the process step by step.

Determine the Pool Volume

The first step in determining the right size pump for your above-ground pool is to determine the pool's volume. You can do this by using a simple formula: length x width x average depth x 7.5. For instance, if your pool is 24 feet long, 12 feet wide, and its average depth is 5 feet, its volume calculation would be as follows:

Length x Width x Average Depth x 7.5 = Pool Volume
24 ft x 12 ft x 5 ft x 7.5 = 10,800 gallons

Calculate Flow Rate

The next step is determining your pool's minimum flow rate, measured in gallons per minute (GPM). To calculate this, you'll need to know the turnover rate, which is the amount of time it takes for your pump to cycle through your pool's entire volume. To ensure that your pool stays clean and healthy, it's recommended that you cycle through the water at least once a day.

To get the turnover rate, divide the pool volume by the desired turnover time. For instance, using the example pool above, if we want to achieve turnover within eight hours (480 minutes), the calculation will be:

Pool Volume ÷ Turnover Time in Minutes = Flow Rate
10,800 gallons ÷ 480 minutes = 22.5 GPM

Choose the Right Pump

Now that you know your pool's GPM, it's time to select the right variable speed pump. The recommended flow rate of most above-ground pool pumps falls within the range of 20 to 30 GPM.

It's important to account for additional factors that can affect flow rates, such as adding extra features like waterfalls, slides, or using long pool hoses. In such cases, you will need to adjust your calculations and choose the pump that accommodates these additional factors.

Conclusion

Determining the right size variable speed pump for your above-ground pool requires careful planning and calculation. By following the steps outlined in this post, you should be able to choose a pump that circulates and filters your pool's water efficiently. Don't forget to account for any additional features or equipment that can affect your pool's flow rate.

We hope this post has helped you understand how to determine the right pump size for your above-ground pool. Now it's time to put this knowledge to the test and measure the size of your pool pump. Remember, a well-maintained pump and pool will keep your favorite swimming time fun and safe!

Thanks for reading and keep your pool sparkling!