How do I know what size of pump and filter I really need?

To determine the right size of pump and filter for your pool, you need to consider a few key factors. First, calculate the volume of your pool in gallons. You can typically find this information in your pool's specifications or by using a volume calculator based on the pool's dimensions.

Once you have the volume, the general rule of thumb is that your pump should be able to circulate the entire pool's water in about 8 hours. To find the required pump flow rate in gallons per minute (GPM), divide the total volume by 480 (the number of minutes in 8 hours). For example, a 20,000-gallon pool would need a pump with a flow rate of approximately 42 GPM.

For the filter, the size is usually determined by the pump's flow rate. Filters are rated by their flow rate capacity, so choose one that can handle your pump's GPM.

Costs can vary widely depending on the type and brand of pump and filter, typically ranging from $200 to $1,500 or more. For the best results, consider consulting with a licensed pool professional who can assess your specific needs and provide tailored recommendations.

As a next step, get 2-3 local quotes on Handyman.com to compare options and find the best fit for your pool.

— Assisted answer