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Spa cartridges are one of our fastest moving products here at Hot Tub Works. We ship over 50,000 spa filters per year to spa owners all over the country. So it's only natural that we're going to talk about them on the blog!
Yes, we like to sell hot tub cartridges, but it's a product that feels good to sell, because I know that it's improving water quality and health, and reducing energy and water consumption. It's a win-win for us both!
So for those spa owners out there that still think their cartridge can last another few months (we recommend changing it every 10-15 cleanings or every 12-18 months, whichever comes first), here's some ways that a new hot tub cartridge saves.
SAVE MONEY: A new hot tub cartridge filters so much better than a worn filter cartridge that you will find you need less chemicals to keep it clean like MPS, clarifiers or foam-out. A new spa filter can also reduce staining, or deadly deposits on your heater core. New cartridges on schedule can allow you to run the pump less, while using fewer chemicals. Using an old cartridge requires more pump run time and more chemicals to compensate for the inability of older cartridges to trap fine particles. You'll save more money than you spend on regularly replacing a spa filter cartridge.
SAVE WATER: If you are under water restrictions in your area, or would just prefer to reduce the frequency of draining and refilling the tub (which also saves money), buying a new spa filter on schedule will enable you to increase the length of time between water changes. For those of you under extreme hot tub water restrictions, changing water only once or twice per year, we recommend a new cartridge every 6-12 months. Some of our customers are finding success with draining only halfway every six months, but also replacing the spa filter cartridge at the same time.
SAVE ENERGY: Everyone likes to save energy. Spas and hot tubs are not huge energy hogs, but every little bit helps. As mentioned earlier, new or almost new hot tub filters are so much more effective than old or almost old cartridges, that you can actually run the pump 1-2 hours less per day, and maintain the same water quality. As a filter cartridge ages, the constant battering from the water flow and from periodic cleanings forces open small gaps between the woven polyester fibers. This allows small particles to pass through unfiltered, requiring - you guessed it, more filtering (and or more chemicals) to keep the water clean and clear.
SAVE TIME: Why do you save time? A new or almost new spa filter cartridge will filter the water more effectively, which means that your water will stay clean and balanced more easily, with less water problems. It also can last twice as long before it needs cleaning, as compared to a 24 month old spa cartridge, which clogs quickly from oil and mineral deposits that don't come out, even with chemical soaking. What's worse is that as spa filters age, they can't trap the small particles anymore. New filters can filter down below 20 microns, but an old cartridge may not trap sizes of 35 micron particles, which is where particles become visible to the human eye.
In case you're wondering, I change my spa filter every 15 months, like clockwork. Set yourself an email reminder with the link to your particular spa filter, so you can reorder your spa filter on schedule. Maybe we should start a spa filter subscription service!?!