How Often Should I Change My Hot Tub Filter?

By Jon Filson

Hydropool Hot Tubs and Swim Spas

How Often Should I Change My Hot Tub Filter?


If you have recently purchased a hot tub or are about to become a lucky new owner of one, it is important to know what a hot tub filter is, how it needs to be cleaned and when it needs to be replaced. After all, it is this little component that will be responsible for keeping your hot tub clean and sanitary for you to take a relaxing soak whenever you feel like it.


In the article below, we will highlight exactly what you need to know about when you should change your hot tubfilter.


When Do Filters Need to Be Replaced?


While it is true that hot tub filters need to be cleaned on a regular basis, they also need to be replaced to prevent wear and tear. It is important to keep track of the age of your filter and when a replacement will be needed, which will keep your hot tub performing at its best.


What Is a Hot Tub Filters Lifespan?


There is no official answer to this as it largely depends on how often your hot tub is used.Generally speaking, a quality filter will last anywhere between two to five years if it is being properly cared for and cleaned along the way. For most hot tub owners that use their spa frequently up to three years would be the longest they should expect a filter to last.


Other Reasons to Replace a Filter


Other than usage, the type of water used in your hot tub can influence how frequently a filter needs to be replaced. Hard water will cause calcium deposits to build-up on your filter, which although not noticeable when you are in the water, will cause the filter to deteriorate much quicker.


If you ever notice that your filter has turned a green or brown shade or begins to fall apart while you are cleaning it, it is time to replace it.


Regular Cleaning


Every week, you should remove and rinse your filter with running water under a hose or sink tap. Every month, it is recommended to use a specialized chemical spray on your filter before rinsing. Every three months, your filter will need to be removed and soaked in a specialized chemical solution.


Some Additional Cleaning Tips


  • - To avoid downtime in your hot tub, purchase a spare filter which can be used while your primary one is soaking.

  • - Never use a high-pressure washer on your filter (stick to a gentle water stream from a faucet or garden hose)

  • - Allow the filter to completely dry before replacing

  • - Wear rubber gloves while cleaning and handling your filter with the chemical solution.


Finally, never use standard household cleaning products to clean your hot tub filter. Ask your local dealer what product they recommend and if you are ever in doubt about whether or not to replace your filter, give your dealer a call.


To find out more about how to care for your new hot tub, download a hot tub buyer’s guide here.

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