How To Clean A Hot Tub Filter - Deep Clean vs. Weekly Rinse

This post provides a step-by-step guide on cleaning a hot tub filter using two different methods and discusses the difference between the two.

Hot tub filters are an integral part of the filtration system of your hot tub. They're designed to catch dirt and debris entering the hot tub. Hot tub filters can be cleaned using different methods such as rinsing and deep cleaning. Let's see how it's done and compare both methods.

Weekly Rinse

The easiest way to clean your filter is to use water from a hose to rinse off dirt and debris. Just take the filter out of your hot tub and gently clean it with a stream of water. You should do this at least once a week to prevent the hot tub filter from clogging.

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Avoid using too much pressure to prevent tearing or damaging your filter. Put it out to dry after rinsing. Your filters are now ready to be used again.

Deep Clean

Aside from the weekly cleaning, your hot tub filters also need deep cleaning at least once a month. Soaking a hot tub filter in a cleaning solution removes residual bacteria and oils left out during the weekly rinse.

You can buy filter cleaning solutions from your local hardware and hot tub suppliers. Just follow the package instructions in preparing the hot tub. Soak the hot tub filter in it for 24 hours. Rinse the filter and let it dry before putting it back in your hot tub. Your hot tub filter is good as new again.

deep clean

Key Takeaways: Hot tub filters require rinsing once a week using water only to maintain their ability to filter contaminants and debris. Deep clean is done once or twice a month using filter cleaning solutions to remove oil, residue, and bacteria.

Alternative DIY Hot Tub Filter Cleaner Options

alternative diy hot tub filter cleaner options

Filter cleaning solutions can cost you money, but there are some alternatives you can find at home that do the job. However, there are some pros and cons to using them.

Cleaning Hot Tub Filters with Vinegar

Vinegar is a weak acid capable of removing scale and mineral deposits on surfaces like your hot tub's shell or water line. Vinegar works well on your filter too. Many hot tub owners use it as an alternative filter cleaning solution because of its anti-scaling properties.

You don't have to worry about skin irritation or foaming because it's all-natural and doesn't leave any residue. However, vinegar also has its limits. Vinegar won't work with poorly maintained filters with a lot of buildups.

Cleaning Hot Tub Filters with Bleach

Bleach is much stronger than vinegar as a cleaning agent and also has anti-bacterial properties. It eliminates scum and bacteria effortlessly, leaving you with a clean-looking and sterilized hot tub filter. It's a better cleaner than vinegar, but it also comes at a cost.

Frequent bleaching can damage or wear down the fibers that trap debris and contaminants. Worn-down filters aren't as effective in doing their job and will have to be replaced. Only use bleach as a last resort to clean your hot tub filter in a pinch for best results.

Cleaning Hot Tub Filters with Laundry Detergent

Laundry detergents cut oil and grease and are an effective cleaning agent much like bleach but without the harmful effects. It doesn't wear down the fibers in your hot tub filters and can be used repeatedly. Be sure to rinse it very well. Foaming prevents the filters from doing their job, causing more buildup.

Cleaning Hot Tub Filters in the Dishwasher

Another popular method used by some hot tub owners is putting their hot tub filters into the dishwasher. Dishwasher detergents cut oil and residue without bubbling up, so you don't have to worry about foaming when installing your filter back to your hot tub. However, it doesn't get between the filter pleats and can also wear down the fibers shortening its service life.

Key Takeaways: Alternative DIY solutions should only be used when no filter cleaning solution is available. For deep cleaning, only use the recommended cleaning solution.


Regular cleaning ensures your hot tub filter will function properly in removing contaminants and debris, keeping your hot tub clean and safe for everybody. After some time, your filter will stop working even after cleaning it and ensuring it's properly maintained. It can last up to a year or more, depending on how often you use your hot tub.