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how big of a pool filter do i need

2023/05/18

Author: Poolking - Swimming Pool Equipment Manufacturer

How Big of a Pool Filter Do I Need?


When it comes to maintaining a sparkling clean pool, a proper filtration system is essential. But with so many options available, it can be hard to determine which size pool filter is suitable for your specific pool size. Fortunately, this article will provide you with insights on how to calculate the correct pool filter size, depending on the pool size and other critical factors.


Calculating the Proper Pool Filter Size


The pool filter size you need will depend on a few key factors, including:


1. Pool Size


Your pool's size is the most significant factor that plays a role in determining the appropriate filter size. If your pool is larger, you will require a more massive filter that can circulate more water. If you're not sure of your pool's size, you can measure its dimensions to calculate its capacity.


2. Pool Usage


How frequently you use your pool will also impact the kind of filter you need. If your pool gets lots of use, especially by lots of people, you'll require a larger filter. This is because more frequent use requires more frequent sanitation practices, thus more filtration.


3. Environmental Factors


The environment can seriously affect your pool's filter size too. If your pool is surrounded by trees, or if the area is prone to dust and dirt, you'll need a more powerful filter to keep up with the debris that can enter the pool. Moreover, if there are many swimmers or animals in the area, you will need a larger filter to manage the bacteria that can enter the water.


4. The Filter Type


The type of filter you choose also plays a role in determining the proper filter size. These filters vary in their filtration abilities, and it's recommended to consult a pool service provider to determine the best filter type for your pool.


5. Pump Flow


Finally, the size of your pool's pump flow will greatly impact the filter size requirements. A pump with a high flow rate requires a larger filter to manage the amounts of water passing through it.


Pool Filter Sizing Chart


To make your pool filter size calculation easy, you can use a pool filter sizing chart that outlines the recommended filter size based on your pool size. Below is a standard pool filter sizing chart recommended by industry experts:


a. Pool Size: 10,000-15,000 Gallons / Filter Size Recommendation: 100 Sq.ft


b. Pool Size: 15,000-20,000 Gallons / Filter Size Recommendation: 150 Sq.ft


c. Pool Size: 20,000-25,000 Gallons / Filter Size Recommendation: 200 Sq.ft


d. Pool Size: 25,000-30,000 Gallons / Filter Size Recommendation: 250 Sq.ft


e. Pool Size: 30,000-40,000 Gallons / Filter Size Recommendation: 300-400 Sq.ft


Keep in mind these are just suggestions and you should always verify with a pool service provider that you choose the correct size filter.


Choosing the Right Filter Type


Now that you have determined the appropriate filter size, let's discuss the different types of filters from which to choose. While there are many filter types available, the three primary types are cartridge filters, sand filters, and DE filters.


a. Cartridge Filters: These filters use cylindrical-shaped cartridges to capture and hold debris. Cartridge filters are low maintenance compared to the other options, yet have limited filtration capabilities.


b. Sand Filters: This type of filter utilizes silica sand to filter out large debris while cleaning larger particles right through the filter. Sand filters are kept up with backwashing that needs a bit more maintenance compared to cartridge filters.


c. DE Filters: Diatomaceous Earth (DE) filters are the most efficient and are best for those who need to remove finer particulates, like microscopic algae. DE filters are the most costly and require substantial upkeep.


Summary


When determining the size of the pool filter you need, take into consideration pool size, usage rate, environmental elements, the type of filter, and the pump. Knowing the best filter size for your pool can be simple by using a pool filter sizing chart; however, it's suggested to consult a pool service provider to ensure you pick the best fit for your specific requirements. With proper filtration and maintenance, your pool will stay sparkling clean all summer.

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