FREE Chemical Treatment Guide

How often you need to check on your filter will vary drastically on usage. Obviously the more it’s used, the more contaminants it will be picking up, the more you’ll need to check it. A good general rule would be every 2 weeks. Most filters are white, so it’s easy to see if there is anything on your filter. If your hot tub filter is yellowed, or if you see bits of white build up within the pleats, it’s time for at least a rinse.

To rinse your hot tub filter, you can simply take your garden hose with a sprayer attachment and spray it from the top-down rotating it with your fingers as you go. Obviously in the winter that won’t do. You may need to bring it into the sink or tub to do a good job.

If you have rinsed your filter, and it’s still yellow or maybe was looking a little nastier than usual, you’ll want to give it a chemical cleanse. This is done by removing the filter and placing it in a bucket with Filter Free (filter cleaner) and hot water. You’ll let it soak overnight, then rinse it thoroughly with water. You don’t want any of the Filter Free product to go back into your hot tub water.

If you have rinsed your filter, gave it a chemical cleanse, and it still isn’t white, it’s probably time to start fresh. Filters will last on average 1 year of usage. Another thing to look for is if the pleats are starting to slightly decompose.