How to Clean Hot Tub Filters
It's easy to stay on top of cleaning the things you can see. But it's equally as easy to neglect cleaning the things you can't see. We're talking about hot tub filters. The longer you put off cleaning them, the higher the chance you'll be soaking in a tub that's dirty. And no one wants that!
When you clean your filters, mark it on the calendar and set a reminder so you don't forget to do it the next time.
You may wonder: why do I even need to clean my hot tub filter? Don't the chemicals and soaps do the job every day?
Not so. Spa filters are what keep your water clean, but in the process, they get very dirty with built-up contaminants and debris. Those filters are doing their job - catching particles (hair, dirt, bacteria, gunk) that shouldn't get into the water. But your job is to clean those filters, or else they won't work as intended.
As your filter gets dirtier, it doesn't catch as much of the dirt and debris. That stuff has nowhere else to go but back into the water.
The 3 Main Hot Tub Filter Parts
Spa filters have three parts:
Media
This is what actually cleans your water, and it's made from white, pleated polyester. When the water passes through, the media is what catches all the debris.
Core
The core, made of plastic, reinforces the media so it can withstand the force of water flowing through it. The filter performs better with this core in place.
End Caps
These are two plastic discs on both ends of the filter, and their job is to keep the core and media firmly in place as well as to attach the filter to the chambers.
Steps to Clean Hot Tub Filters
You will need the following cleaning supplies on hand before cleaning your hot tub filters.
- Hose
- Bucket
- Spa filter cleaner, chemical rinse, chemical soak
- Spray bottle
- Filter cleaning wand for quick rinse (optional)
Quick Rinse
Take out the filters and rinse them quickly with clean water from the hose or sink, getting in between each pleat. Make sure it's dry before placing back in hot tub.
Chemical Rinse
Spray the hot tub filters, and allow to sit for 20 minutes. Rinse with water.
Chemical Soak
Dilute the filter soak chemical with water in the bucket. Put the filter in and let it sit for 24 hours. Rinse thoroughly and dry before placing back into the hot tub.
What NOT to DO
During the cleaning process, there are some things you should not do, to avoid damage.
Don't Use Bleach
While fine for the hot tub shell, you should not use bleach on your filter because it can damage the media fibers.
Stay Away From Household Cleaners
This could lead to a major foam problem, despite your efforts to rinse well.
Don't Put Filters in the Dishwasher
While the dishwasher will get your filters clean, you will have to replace them far more frequently than if you just hand washed them. Dishwashing detergent is only good for hard surfaces such as ceramics and plastics. If you use it on filter media, the polyester fibers will be damaged and thus the filter won't be as effective.
When to Replace Filters
Cleaning your filters will only go so far. After a certain period of time, your filters will wear out and need placement because they won't be able to as effectively clean your spa. You should switch out your filters once a year or more often if you're always using your hot tub or a lot of people use it throughout the week.
Remember, dirty hot tub filters can void your warranty, so make sure you keep up with the cleaning regimen. Signs you need to replace the filter include:
- Ripped, bent or imploded media
- Brittle, cracked, or discolored end caps
In the end, you'll be cleaner and happier knowing your hot tub filters are cleaned and ready to do their job.
If you need help with changing your filters or want more advice, ask our technicians anytime here at Central Jersey Pools. We would be happy to help.