A Simple Guide To Cleaning Your Hot Tub Filter

cleaning hot tub filter
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Everyone loves a good soak in their hot tub, especially after a long day of work. But many people must realize that hot tubs require regular maintenance to keep them running safely and effectively.

One of the most critical steps in hot tub maintenance is cleaning the filter. It can cause serious water quality issues and even damage your hot tub's pump or heating system if neglected.

Keeping hot tub filters clean regularly is essential to ensure the safety, hygiene, and enjoyment of hot tub users. Spa filters trap debris, dirt, and other contaminants that affect water quality. With proper cleaning, hot tub filter cartridges can avoid becoming clogged and can perform their job efficiently.

Properly maintained hot tub filters also help extend the life of your hot tub by preventing damage from sediment buildup or corrosion caused by chemical imbalances in the water. Regular hot tub filter maintenance will save time, money, and hassle while providing peace of mind knowing you're soaking in clean water every time!

pair of hot tub filters

Hot tub filter anatomy

Understanding what makes up a hot tub filter and how it works is vital to ensuring proper care and maintenance of your spa.

A spa filter consists of a cartridge with pleated paper that traps debris, dirt, and other contaminants. The hot tub filter also contains a housing or casing which holds the cartridge in place, allowing for easy removal when it needs to be cleaned or replaced.

Depending on your hot tub, they can also contain end caps that attach securely onto either side of the filter housing to prevent contaminants from entering the spa system. Some filters may have additional features, such as an integrated pressure gauge that allows you to monitor when your hot tub filter needs cleaning or replacing.

How often should you clean your hot tub filter?

Regular cleaning and maintenance of your hot tub filters will help extend the filter's lifespan, maintain water quality, and prevent the growth of bacteria and other harmful substances.

If you are using your hot tub frequently or have a lot of bathers, it is recommended to rinse your hot tub filter with clean water every 1-2 weeks to remove any surface dirt and debris.

This can be done by removing the filter and rinsing it with a garden hose or special filter cleaning solution. However, a deeper cleaning is necessary every 2-4 months to maintain optimal performance.


hot tub filter cleaner


How to properly clean your hot tub filter

To simplify your cleaning experience, here's a step-by-step guide on properly performing a deep clean on your hot tub filter.

  • Step 1: Gather your supplies. You will need a hot tub filter cleaner, a large bucket or container to hold your filter, a towel, and a hose or tap to rinse the filter. A hot tub filter wand is also a great idea to have!
  • Step 2: Remove the filter. This is usually done by unscrewing the filter lid or housing and pulling out the filter.
  • Step 3: Soak the filter. Fill your bucket or container with water and add the recommended hot tub filter cleaner (follow the instructions on the bottle). Place the filter in the solution and let it soak for several hours. This will allow the cleaner to penetrate deep into the filter material and remove any built-up dirt and grime.
  • Step 4: Rinse the filter. After soaking, rinse the filter thoroughly with a hose or tap water to remove any residual cleaner. Make sure the filter is completely free of the cleaning solution.
  • Step 5: Dry the filter. Let the filter air dry completely before re-installing it into your hot tub. This will prevent any residue from the cleaning solution from entering the water.

And that's it! Regular deep cleaning of your hot tub filter will help to keep your spa water clean and clear and ensure a fantastic spa experience every time. So grab your supplies, get ready to dive in, and let's get cleaning!

Tips on maintaining hot tub filter in between cleanings

Maintaining your hot tub filter in between cleanings is essential for ensuring the filter's longevity and optimal performance. Here are some tips to help you keep your hot tub filter in tip-top shape:

  1. Use a hot tub cover: A hot tub cover will help to keep dirt, debris, and other contaminants from entering the water and clogging your filter. Be sure to cover your hot tub when not in use.
  2. Clean up after each use: Before closing the cover, use a skimming net to remove any debris floating in the water. This will also prevent the debris from entering the filter.
  3. Adjust the water chemistry: Maintaining the correct pH and chlorine levels in your hot tub will help to prevent the growth of bacteria, hot tub scum, and other harmful substances. Regularly testing and adjusting the water chemistry prevents mineral buildup on the filter.
  4. Use a filter cleaning solution: A filter cleaning solution is designed to remove dirt, grime, and oils from your filter. Spraying your filter with a filter cleaning solution every month will help to maintain the filter's performance and extend its lifespan.
  5. Check the filter regularly: Regularly inspecting the filter will help you to identify any problems and take corrective action before they become significant issues. Check the filter for tears, cracks, and any signs of wear and tear.

By following these simple tips, you can keep your hot tub filter in top condition and enjoy a fantastic spa experience every time. So take a few minutes to implement these tips into your regular hot tub maintenance routine, and enjoy a cleaner, clearer, and more enjoyable hot tub experience!

hot tub filter pulled from water

Common mistakes to avoid when cleaning hot tub filters

When cleaning a hot tub filter, it's important to avoid common mistakes that can damage the filter or reduce its effectiveness.

The first mistake to avoid is not cleaning the filter frequently enough.

Regular cleaning is crucial to maintain the performance and longevity of the hot tub filter. If the filter is cleaned regularly, it can avoid becoming clogged with dirt, debris, and bacteria, which can negatively impact water quality and cause issues with the hot tub's equipment.

Another mistake to avoid is using the wrong cleaning solution.

Different types of filters require other cleaning solutions, and using the wrong cleaning solution can damage the filter or reduce its effectiveness. It's essential to consult the manufacturer's instructions or a hot tub professional to determine the appropriate cleaning solution for your filter.

Important: never use bleach or household cleaners on your filter.

Neglecting to rinse the filter thoroughly is another common mistake when cleaning hot tub filters. After cleaning, it's important to thoroughly rinse the filter to remove all cleaning solution and debris. If the cleaning solution is not thoroughly rinsed, it can leave chemical residue and cause issues with water chemistry and equipment performance.

Scrubbing the filter too aggressively is another mistake to avoid. While scrubbing is necessary to remove dirt and debris, scrubbing too harshly can damage the filter media and reduce its effectiveness. We recommend gently using a towel to wipe off any residue. You can also use a special filter cleaning brush that connects to your hose.

Lastly, it's important to reassemble the filter correctly after cleaning. Improper reassembly can lead to leaks or reduced filtration performance, so it's crucial to follow the manufacturer's instructions or consult a professional to ensure the filter is reassembled correctly.

By avoiding these common mistakes and following proper cleaning procedures, you can ensure that your hot tub filter is functioning optimally and providing clean, clear water for your hot tub.

How often should you replace your hot tub filter?

Hot tub filters are essential in keeping your spa water clean and clear, but how often should you replace them? The answer depends on several factors, including frequency of use, the size of your hot tub, and water chemistry. Here's what you need to know.

If you use your hot tub a lot, you should replace your filter every 6 to 12 months. If you use your hot tub less regularly, you may be able to go longer between replacements, but it's still a good idea to check your filter every month or so.

Inspecting your filter regularly for signs of wear and tear, such as cracks or tears in the filter media, is essential. If you notice any damage or see that your filter is not functioning as well as it used to, it may be time to replace it.

The size of your hot tub and the chemistry of your spa water can also impact the lifespan of your filter. For example, if your hot tub is larger, it will require more filtration, and you may need to replace your filter more often. If your water chemistry is unbalanced, it can cause buildup and clogging on your filter, reducing its effectiveness and requiring more frequent replacements.

Ultimately, it's important to follow the manufacturer's recommendations and to inspect your hot tub filter regularly to determine when it is time to replace it. A well-maintained filter will ensure optimal water quality and equipment performance and help extend your hot tub's life.

So, keep an eye on your filter's performance and replace it as needed to keep your hot tub running smoothly!


Checking and cleaning your hot tub filter regularly is a crucial aspect of hot tub maintenance. This simple task can help to maintain the cleanliness of your hot tub water, prolong the lifespan of your equipment, and ensure that you enjoy a relaxing and rejuvenating spa experience every time.

Pay attention to your hot tub filter - follow the manufacturer's recommendations and include it as a regular part of your hot tub care routine.

By doing so, you'll be able to keep your hot tub in top condition and ensure that you can continue to enjoy it for years to come!