what size above ground pool filter do i need

As a pool owner, one of the main aspects of pool maintenance is ensuring clean and safe water. Choosing the right size filter for your above ground pool is a key aspect of this maintenance. With a plethora of choices available, it can be challenging to determine what size filter you need. Let’s dive into some essential factors to consider when selecting the right size filter for your above ground pool.

1. Why is a filter important?

The filter is an essential part of your pool’s circulation system. Its purpose is to remove dirt, debris, and other particles from the water to keep it clean and clear. The filter plays a significant role in maintaining the health and safety of your pool.

2. How do I know what size filter I need?

The size of the filter you need depends on your pool's size and your usage. The filter's flow rate, which is measured in gallons per minute (GPM), determines its size. A filter’s flow rate must turn over the water in the pool at least once per day. Therefore, calculating the pool's volume and dividing it by eight hours will give you the necessary GPM flow rate. Once you know the flow rate you need, you can match it with the appropriate filter size.

3. What are the different types of filters available?

There are three main types of filters available for above ground pools: sand, cartridge, and diatomaceous earth (DE). Sand filters are the most commonly used filter for above ground pools, and they are an affordable option. Cartridge filters are becoming increasingly popular due to their high filtration capability and low maintenance. Lastly, DE filters offer the highest filtration rate and are suitable if you have a lot of debris or heavy usage.

4. How often should I clean my filter?

Cleaning your filter regularly is crucial for proper functioning, and it can prolong the life of your filter. You should clean your filter once a month, or more often, depending on usage. Cartridge filters are the easiest to clean, requiring only a rinse with a garden hose. Sand filters required backwashing, and DE filters need cleaning and recharging with DE powder.

5. What other factors should I consider?

In addition to the pool size and filter type, you should consider other factors when selecting the right size filter. The pool’s location, the local weather conditions, and surrounding landscape should play a role in your decision. Heavy winds and frequent storms can increase debris in your pool and, therefore, require a larger filter. Additionally, if you live in an area with hard water, you may need a larger filter for improved water balance.

In conclusion, choosing the right size filter is crucial for the safety, health, and longevity of your pool. Take the time to consider your pool's size and usage, filter type, cleaning requirements, and other external factors to determine the right filter size for you. With these factors in mind, you can enjoy a sparkling and clean pool all summer long!