How to Properly Clean Your Hot Tub Filters

How to Properly Clean Your Hot Tub Filters: A Step-by-Step Guide

Your hot tub filter plays a crucial role in keeping the water clean, clear, and free of debris. Over time, however, your filter can become clogged with oils, dirt, leaves, and other contaminants, which can reduce its efficiency and cause your hot tub to perform poorly. Cleaning your hot tub filter is an essential part of routine maintenance and should be done regularly to ensure your hot tub operates at its best.

In this blog post, we’ll walk you through the process of properly cleaning your hot tub filters, how often it should be done, and some important tips to help prolong the life of your filters.

Why Clean Your Hot Tub Filter?

Your hot tub’s filter is designed to catch debris and contaminants, keeping your water clean and safe for soaking. However, as it traps particles, it can become clogged and less effective. When the filter is dirty or clogged:

The water circulation is reduced, leading to poor filtration and possibly cloudy water.
The heater and pump have to work harder, which could result in energy inefficiency and increased wear on the system.
The risk of bacteria growth increases due to insufficient filtration.

Regular cleaning helps maintain the performance of your hot tub, ensuring the water stays clean, clear, and safe.

How Often Should You Clean Your Hot Tub Filter?

The frequency with which you should clean your hot tub filter depends on how often you use your hot tub and the type of filter you have. As a general rule:

Rinse the filter every 1-2 weeks using a hose to remove surface debris.
Deep clean the filter every 1-3 months using a filter cleaner (or more frequently if you notice a decrease in performance or an increase in foam or cloudy water).
Replace the filter every 12-18 months, depending on usage and wear.

If your hot tub sees heavy use (frequent use by multiple people or after heavy storms), you may need to clean the filter more often.

Step-by-Step Guide to Cleaning Your Hot Tub Filters

Follow these steps to clean your hot tub filter thoroughly:

1. Turn Off Your Hot Tub

Before starting the cleaning process, turn off the power to your hot tub to avoid any electrical accidents or damage to the system.

2. Remove the Filter

Carefully remove the filter from the filter compartment. The exact method for removal will vary depending on the model of your hot tub, but filters are usually designed to be easily lifted out. Be sure to note the position and orientation of the filter so you can reinstall it correctly.

3. Rinse the Filter

Using a hose with a nozzle, rinse the filter to remove any large debris, leaves, or dirt. Spray from the inside of the filter (the side that faces the hot tub) outwards. This helps dislodge trapped particles. Make sure to rinse the pleats thoroughly to ensure debris is removed from between them. Do this for a few minutes until the water runs clear.

4. Soak the Filter in a Cleaning Solution

After rinsing, it’s time for a deeper clean. Fill a container or bucket with warm water and add a hot tub filter cleaner. You can find filter cleaning products at most pool and spa stores, or use a natural solution like vinegar or a mild dish soap solution (note that some cleaners are specifically formulated for spa filters).

Place the filter in the solution, ensuring that it’s completely submerged. Let it soak for about 1-2 hours. This soaking process helps break down oils, minerals, and other contaminants that may have built up over time.

5. Scrub the Filter

After soaking, use a soft brush (such as a filter cleaning brush or an old toothbrush) to gently scrub the pleats of the filter. Be careful not to damage the filter material—scrub in a back-and-forth motion to dislodge any remaining dirt and debris. Focus on areas where buildup is most likely, such as the pleat folds.

6. Rinse Again

After scrubbing, rinse the filter thoroughly with the hose to remove any remaining cleaning solution or debris. Be sure to rinse both the inside and outside of the filter.

7. Dry the Filter

Once the filter is clean, shake it gently to remove excess water. Allow the filter to air dry completely before reinserting it into your hot tub. Avoid putting it back in while it’s still wet, as this can lead to bacterial growth.

8. Reinstall the Filter

After the filter is dry, carefully reinstall it into the filter compartment. Make sure it’s seated correctly and securely before turning the power back on.

9. Check the Water Chemistry

Once your filter is cleaned and reinstalled, test your hot tub water to ensure the chemistry is balanced. Proper water chemistry (pH, alkalinity, and sanitizer levels) is key to maintaining clean water, especially after cleaning the filter.

Tips for Maintaining Your Hot Tub Filter

Don’t Use Household Cleaners: Avoid using harsh chemicals, bleach, or household cleaners on your hot tub filter, as they can damage the filter material and affect water quality.
Use a Filter Cover: If your hot tub is exposed to debris, like leaves and dust, using a filter cover when the tub is not in use can help protect your filter from clogging.
Consider Using a Filter Cleaner Regularly: Regular use of a filter cleaner (every 1-3 months) will help break down oils, minerals, and bacteria that can build up in the filter, extending its life and improving its efficiency.
Monitor Filter Condition: If you notice a significant decrease in water flow, or if the filter seems excessively worn or damaged, it may be time to replace it. A filter typically lasts 12-18 months, but this depends on usage and the condition of your water.

Conclusion

Cleaning your hot tub filter is one of the most important tasks in maintaining clean, clear, and safe water. By following a regular cleaning routine—rinsing weekly and performing a deep clean every month or so—you’ll keep your filter working efficiently, prolong the life of your hot tub, and reduce the risk of water quality issues. Regular filter maintenance also helps prevent unnecessary strain on your hot tub’s pump and heater, saving you money on repairs and energy costs. So, make filter cleaning part of your hot tub maintenance routine, and you’ll be able to enjoy a relaxing soak in pristine water every time!