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Hot tub cartridge filter, blue and white against black background.

Top 5 Tips for Buying a Hot Tub or Spa – Part Three: Filtration and Maintenance

Most portable hot tubs and spas use a cartridge-type filtration system to ensure clear, sparkling water. In cartridge filter systems, water is drawn in to the center of the filter, catching small particles and debris on the filter’s surface, then the water is pushed back out through the filter back into the spa. When shopping for a hot tub, an important question to ask is…

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