The pool & Spa filter is also called multi fold filter. Most of them use polyester fiber as the filter media, which is glued together with the end cover of the central rod.

Foldable design, larger filtering area, overall gluing, better sealing of end cover, the Pool & Spa filter has the advantages of long filtering life, less replacement times and low corresponding filtering cost, it is applied to chemical agents, electroplating filtration, solvent and pharmaceutical filtration, food and beverage filtration, especially has a more extensive application in the swimming pool filtration.

It is very necessary to master the daily maintenance of the swimming pool, no matter for commercial or domestic use, to clean and protect the water quality and to reduce the operating cost. The Pool & Spa filter is one of the indispensable ingredients for swimming pool cleaning. As the owners of the swimming pool, they should clearly understand the daily maintenance and precautions of the Pool & Spa filter.

1. The Pool & Spa filter will leave the dirt on itself. It is recommended to clean the Pool & Spa filter every time it is taken out. Or there are two sets of Pool & Spa filter to replace at the same time with each water change.

2. In the process of cleaning, sprinkle some salt on the Pool & Spa filter, then soak it in clean water for about 30 minutes, and then rinse it with water.

3. If there is dirt in the Pool & Spa filter, it can be washed softly and carefully to assure surfaces are not damaged!

4. Two more Pool & Spa filters can be prepared for daily use, so that they can be cleaned and dried in turn to extend the service life of the filter.

5. The general Pool & Spa filter can be recycled for about 4-5 months, and the specific time shall be determined according to the water quality, the number of swimming and daily maintenance.

6. If problems are found in water quality, such as yellowing and greenness, it is recommended to clean the pipeline regularly to extend Pool & Spa filter’s service life.

7. When cleaning, do not use pressure water gun, hard brush, steel wire ball, toothbrush, etc, to prevent the paper damage, fluffing, too large paper gap of the Pool & Spa filter, which will affect the filtering effect of the Pool & Spa filter.

To sum up, the improper maintenance and use of Pool & Spa filter in swimming pool will have a great impact on its service life, so we should pay more attention to the maintenance of filter in daily life to ensure the extension of its service life.
（Source: http://www.uswaterfilterstore.com/domestic-water-filtration-system/introduction-of-water-purification/pool-spa-filter.html)