how to figure out pool filter size

Author: PoolKing - Pool Sand Filter Manufacturers

How to Figure Out Pool Filter Size

If you’re looking to keep your pool sparkling clean, you need to invest in a good quality pool filter. Filters vary in size, and it's essential you choose the right size that can handle your pool's specific needs. Let's take a look at what you need to know when figuring out the right pool filter size for your needs.

Why is the Right Pool Filter Size Important?

Your pool filter size is essential because it determines how well your pool stays clean. If you purchase a filter that's too small for your pool, it will be overworked, and as a result, not clean your pool effectively.

On the other hand, if you purchase a large filter for a small pool, it could lead to other problems. These problems include:

- Excessive water flow, which will lead to water leaks and damage to your pool.

- Water circulation will be too fast, making it difficult for your filter to catch debris.

- Increased energy costs as your filter will work too hard for the size of the pool.

What Factors Should You Consider When Determining Pool Filter Size?

- Type of pool - Above ground pools or in-ground pools will require different filter sizes.

- Pool location - Your pool's location will affect the amount of debris your pool accumulates in a day.

- Pool usage - Depending on how often people use your pool, you might need a larger filter size.

- Pump size - Your pump's size will determine the flow rate of water that moves through your filter.

- Desired maintenance time - A filter that’s too small will require more maintenance than a larger filter.

What Are the Different Types of Pool Filters?

Pool filters come in three different types:

1. Sand Filters - These filters are the most common type found in in-ground pools. Sand filters use silica sand to remove debris from your pool. Sand filters should be backwashed periodically to remove debris and ensure they are running at optimal levels.

2. Cartridge Filters - Cartridge filters are popular among above ground pools. They use cartridge filters that can be cleaned or replaced when dirty. These filters have a reusable filter cartridge that is easy to remove and clean.

3. Diatomaceous Earth Filters - These filters work through a grid with diatomaceous earth powder, which captures the debris. They are the most efficient filter but also the most expensive. They require frequent backwashing and cleaning to keep them in optimal performance.

How to Determine the Right Size Pool Filter

Now that you know the factors that determine the size of the pool filter, you can determine the right size by:

1. Calculate your pool's gallons - Determine your pool size in gallons. You can use an online calculator or do it manually by measuring your pool's length, width, and depth.

2. Determine blood flow rate - Your pump's size will determine the amount of water that passes through your pool's filter in one minute.

3. Choose the filter type - Choose the filter type and match it with your pool's size and pump flow rate.

4. Determine filter surface area - Look at the manufacturer's specifications to determine the surface area of the filter.

The Bottom Line

The right size pool filter is crucial for maintaining optimal swimming conditions in your pool. Remember that choosing the wrong filter size can lead to a variety of problems. Take the time to determine your pool size, blood flow rate, and filter type to ensure you purchase the right size pool filter.