how to tell what pool filter you have

Author: PoolKing - Pool Sand Filter Manufacturers

How to Tell What Pool Filter You Have: A Comprehensive Guide

If you are a new pool owner or you have just moved into a house with a pool, it is important to know the exact type of pool filter you have installed. This helps you to troubleshoot any filtration issues when they arise and to get the right replacement parts when you need them. This article will guide you through the different types of pool filters and how to identify what type you have.

1. Why Identify Your Pool Filter?

The pool filter is an essential component of your swimming pool system. It helps to keep the water clean and clear by trapping dirt, debris, and other contaminants. Proper pool maintenance requires that you regularly clean and maintain your pool filter to keep it in good working condition. To do this, you first need to identify what type of pool filter you have, so that you can follow the right care and maintenance steps.

2. Types of Pool Filters

There are three types of pool filters: sand filters, cartridge filters, and DE filters. Each has its own unique features and filtration capabilities.

Sand Filters

Sand filters use a specially graded sand to trap dirt and debris. Water is pushed through the sand, and the filter picks up the contaminants. Sand filters are the most popular type of pool filter, as they require little maintenance and are relatively easy to use.

Cartridge Filters

Cartridge filters work by trapping contaminants in a pleated polyester cartridge. They have a large filtration area, which means they trap more particles than sand filters. Cartridge filters are also more energy-efficient, as they require lower pump pressure, which means less energy consumption.

DE Filters

DE filters use a powder made from the shells of diatoms to filter the water. DE filters are the most efficient type of pool filter, as they can remove particles as small as 5 microns. However, they can be more expensive than other types of filters and require more maintenance to keep them in good working order.

3. Identify Your Pool Filter

To identify your pool filter, you first need to locate it. Pool filters are typically located near the pump or attached to the pool equipment pad. Once you’ve found your pool filter, you can then follow these steps to identify what type it is:

Sand Filters

Sand filters have a large, rounded tank that is usually made of fiberglass or plastic. The top of the tank is usually covered with a lid or cap, which can be removed to access the sand inside.

To identify a sand filter, look for a multiport valve on the top or side of the tank. This valve allows you to switch between different filter settings, such as backwash or rinse.

Cartridge Filters

Cartridge filters have a cylindrical tank that contains a pleated cartridge. The cartridge is usually made of polyester or a similar material and can be removed for cleaning or replacement.

To identify a cartridge filter, look for the cylindrical shape and the presence of a removable cartridge inside the tank. Cartridge filters usually don’t have a multiport valve, and instead use a pressure gauge to indicate when it’s time to clean or replace the cartridge.

DE Filters

DE filters have a cylindrical or rectangular tank that contains a grid of plastic or metal fingers. The fingers are covered with a layer of DE powder, which filters the water as it passes through.

To identify a DE filter, look for the cylindrical or rectangular shape and the presence of a grid of fingers inside the tank. DE filters also usually have a multiport valve on the top or side of the tank.

4. Conclusion

Identifying your pool filter is a crucial step in proper pool maintenance. It helps you to troubleshoot issues when they arise and keeps your pool clean and clear. Remember to follow the care and maintenance instructions for your specific type of pool filter to keep it in good working order for years to come.