Instruction And Guide: How to Clean Hot Tub Filter


Your hot tub is the place to relax, whether alone or with family and friends. Its cleaning is often not at the top of your priority list, but to ensure that you can continue to enjoy it for years to come, you need to do regular maintenance. Thus, you should know thing like how to clean hot tub filter yourself.

How does a hot tub filter work?

Water is pumped over the filter by the circulation pump or massage pump to eliminate contaminants such as dirt also debris. The amount of water pumped through the filtration system depends on the make and model of the Jacuzzi you own.

The filter (cartridge filter) works in conjunction with chemicals and disinfectants to keep your spa healthy and clean.

How long does my hot tub filter last?

High-quality filters have a molded plastic core and a pleated polyester material such as, which catches the dirt. The folds of the filter increase its surface area, so that more dirt can be retained. Some products are acid-free, randomly spun polyester material that has been specially developed for its strength and stability in wet conditions and different humidity. It is also resistant to acids and other chemicals and has a lifespan of up to 18 months. If you don’t rotate your filters, you should expect them to be replaced every 12 months.

By purchasing original filters from the manufacturer, your system runs more efficiently, giving you more reliable water circulation and making cleaning and maintenance easier.

Why should I keep my filter clean?

If your hot tub filter isn’t cleaned regularly, the dirt particles will get stuck and eventually build up, affecting the effectiveness of the filter and the cleanliness of your water. If you clean your filter regularly, its service life will be extended.

Before you start cleaning the filter, we recommend that you make sure you have a replacement filter so that you can continue to use your hot tub while your other filter is out of service.

Clean hot tub filter in 8 steps

What you need before you start cleaning:

  • 1x garden hose
  • 1x bucket
  • 1x filter cleaning solution
  • 1x Filter Cartridge Cleaner Tool (optional)
  • 1x clean spray bottle (optional)
  • 1x filter cleaning rod (optional, for quick flushing))

Here is a step-by-step guide to cleaning your hot tub filter:

  1. Turn off your hot tub
  2. Remove the filter
  3. Use a hose tube with good water pressure to remove the larger dirt from the fold
  4. Place the filter in a large bucket or container and fill it with water so that the filter is completely submerged.
  5. Add a filter cleaning solution and let it soak on each solution for the recommended time as indicated on the packaging.
  6. While your filter is soaking, you may need to put a lid on the container to weigh down the filter. Make sure it is not accessible to children or animals during this time.
  7. If it is soaked according to the instructions, remove the filter from the container and hose, paying attention to the wrinkles. A filter cleaning comb is a handy tool that allows you to clean your filter faster and reduce the need for filter cleaning chemicals.
  8. Allow the filter to dry completely before placing it back in the hot tub to kill the remaining microbes

How often should I clean my hot tub filter?

The longer your hot tub filter is not cleaned, the more dirt and debris can accumulate, making its performance less affected. We recommend following our cleaning schedule once a week to ensure that you have filter maintenance under control and can complete the cleaning process faster and easier.

Additional Hot tub Filter Cleaning Tips

There are many more additional tips you should follow to make sure your filter is kept in the best condition:

1. DO NOT use your dishwasher

You might think that the steam also the high temperature of your dishwasher would be the great environment for the hot tub filter – this is definitely not the case. PLEASE DO NOT USE YOUR dishwasher to clean YOUR FILTER. Not only could they damage your filter and dishwasher, but they could also reduce the effectiveness of your filter, which in turn could cause damage to your hot tub.

2. DO NOT use your washing machine

As with a dishwasher, you could damage your filter if you put it in the washing machine, bumping into the metal drum of your washing machine could cause the plastic to crack. The detergents developed for washing laundry have not been tested on the filter or developed for the filter and could have an adverse effect. It can also lead to unwanted foam in your tub. Finally, we recommend that you do NOT place your tub filter in the washing machine.

3. Do not use household cleaning products

While bleach and other household cleaning products are great for cleaning your kitchen and bathroom, they haven’t been specifically designed or tested for hot tub filters. Not only could these products shorten the life of your filter by damaging the fibers, they could also cause further damage to your bathtub, and if not removed properly, they can be harmful to your skin.

4. Always check your filter before replacing

We would always recommend checking your hot tub filter carefully before replacing it to make sure all traces of dirt and debris have been removed, but more importantly to check for signs of wear and tear, especially if your filter is nearing the end of its life. Watch for cracks around any visible plastic parts and make sure there are no cracks or cracks in the main body of the filter.

5. Allow your filter to dry naturally.

Although quality filters are designed to withstand different temperatures, applying direct heat, such as applying a hair dryer or even placing it on a radiator, could deform the plastic or affect the performance of your filter. Always dry your filter naturally.

6. Always replace your filter before putting your hot tub into operation.

The filter is an important part of your hot tub because, as we mentioned earlier, it removes dirt and debris and keeps the water clean. The pump is a more expensive part of the hot tub that needs to be replaced, which is why we don’t recommend running your hot tub without a filter.

7. Hard vs. soft water

The type of water can affect your filter depending on the area you live in. In areas with very hard water, there are higher concentrations of certain minerals, such as calcium. When the water is heated, limescale deposits can remain in many areas, including the filter, causing scale formation.

Regular cleaning of the filter can prevent limescale deposits from forming on the filter, which extends the life of the filter and ensures that it works effectively. As part of your hot tub’s weekly chemical treatment, you should make sure you’re using the right chemicals for your hot tub. For more information, see our full Chemicals Guide.

8. Clean your filter housing unit

Every time you remove your filter from the housing unit, you should wipe it with a clean, damp cloth. This prevents dirt particles from being transferred from the housing unit to the cleaned filter when the filter is replaced.

What are the advantages of proper cleaning of the filter?

Maintaining a regular filter cleaning routine has numerous advantages, such as

Easier chemical maintenance

A clean, well-maintained filter ensures you get more accurate results when testing your water. It makes it easier to treat the water with the right ratio of chemicals to ensure that all potentially harmful bacteria are removed.

Safe hot tub experience for your family & friends

Because the filter is designed to trap debris and dirt and help remove bacteria before it enters the tub, it’s important to keep the tub clean to ensure that everyone enjoying the hot tub stays safe and healthy.

Longer filter life

Maintaining the cleanliness of the filter helps to extend its service life.

You save a lot of money

As mentioned earlier, a clean hot tub filter gives better results when testing the water, which means you could potentially spend less money on chemicals. If you have a well-maintained filter, you should have to replace it less often, i.e. it is easy on your wallet.


A hot tub filter is one of the most vital parts of the cleaning system. Thus, it should be well maintained if you like a clean and healthy hot tub. Keeping your hot tub filter clean has many benefits and can help extend the life of your hot tub, the filter, and the health of its users, and can help you save money.

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