Pool Filter Buying Guide

For a pool to be perfect to swim in, having clean and sparkling water, you must install a good swimming pool filter. This is what makes the pool filter one of the most important components of the pool’s circulation system. If you need help choosing the perfect pool filter, continue to read this buying guide. Here you will learn everything you need to know.

Types of pool filters

Sand pool filters are the most popular type of pool filters due to the fact that they are the most affordable. Also, they generally last between 4 and 10 years, which makes them superior in lifespan when compared to other types of pool filters. Of course, sand pool filters have a downside. More precisely, they can’t catch particles that are smaller than 30 microns.

Cartridge pool filters usually last between 2 and 5 years. What makes them a better choice to go with when compared to sand pool filters is the fact that they can catch particles as small as 10 microns. Also, they have a high capacity, and they are very easy to clean. Unfortunately, their cartridge replacement is more expensive.

DE pool filters are the most technologically advanced types of pool filters. They are highly efficient, being able to capture contaminants as small as 1 micron. The downside to choosing a DE pool filter is that they come at a higher price than the other types of pool filters. Also, DE pool filters are high maintenance.

Choosing the pool filter based on the pool’s capacity and flow rate

The capacity of the pool represents the amount of water that the pool can hold in gallons. To find out the capacity of your pool if it has a rectangular shape, multiply the width by the average depth by the length. If you have a circular pool, square the diameter and multiply it by 5.9 and then by the average depth. If your pool has an oval shape, you can find out its capacity by multiplying the full width by the full length by 6.7 and then by the average depth.

Next, you must calculate the flow rate necessary in a filter to completely filter the pool’s water in a certain amount of time. The filter rate provided by the manufacturer is the filter’s flow rate per square foot. To find the filter’s flow rate, you must multiply the filter rate by the flow rate per square foot. For example, a filter with a filter rate of 20 GPM and an area of 5 square feet will achieve a flow rate of 100 GPM. To make sure that you’re going with the right flow rate, aim for a faster flow than necessary.

Now that you know the pool’s capacity and the flow rate that you need, you must start searching for the perfect pool filter. To do this, you should go online and compare as many models that fit your needs to each other. When choosing the filter, take into consideration if the manufacturer is trustworthy, if the price is acceptable, and if it got positive reviews from other people who have already bought the item.