Regularly changing your hot tub filter is a very important aspect of keeping your tub in tip-top shape. In partnership with sanitizers like chlorine or bromine, these filters keep the water in your hot tub clean.
Unlike sanitizers, filters don’t kill bacteria or other nasties, but they remove dirt, grime and other particles from the water. For instance, you probably won’t always wash before you get into your hot tub after a stressful day, and you could have dirt on your skin (which will itself shed skin cells over time). The filter will catch these small particles, stopping them from circulating around in your tub.
When discussing how long hot tub filters last, it’s safe to say that they have a limited lifespan. After this point, the filter will be unable to effectively remove debris from your hot tub’s water. The lifespan of a filter will depend on many factors, such as the material used and the overall quality of the filter.
Most filters will need to be replaced every three months.