How to Clean Hot Tub Filters

Keeping your hot tub clean and the water crystal clear requires regular maintenance, and one of the most critical components to maintain is the hot tub filter. Your filter traps dirt, oils, and other debris, preventing them from circulating back into the water. Over time, these filters can become clogged, reducing their effectiveness. Let’s go through the steps on how to properly clean your hot tub filters to keep your water fresh and your tub running efficiently.

1. Why Clean Your Hot Tub Filters?

Dirty filters can cause a range of issues, from cloudy water to a struggling heater. When filters are clogged, the water flow decreases, putting strain on the hot tub’s pump and heating system. Regular cleaning ensures:

• Clear, clean water
• Efficient heating and circulation
• Extended lifespan of your hot tub’s components

2. How Often Should You Clean Hot Tub Filters?

The frequency of cleaning depends on how often you use your hot tub. As a general rule:

• Rinse Filters Weekly: A quick rinse with a garden hose can help remove larger debris.
• Deep Clean Monthly: Use a filter cleaning solution to remove oils, scale, and smaller particles that a simple rinse might miss.
• Replace Annually: Even with regular cleaning, filters wear out over time. Replacing your filter annually ensures your hot tub runs smoothly.

3. The Basic Rinse

Weekly rinsing is the simplest way to keep your filters in good condition between deep cleans:

• Turn Off the Hot Tub: Before removing the filter, make sure the hot tub is turned off to prevent any water flow while the filter is out.
• Remove the Filter: Carefully take out the filter. Most filters twist out of their housing, but refer to your hot tub’s manual if you're unsure.
• Rinse with Water: Use a garden hose to rinse the filter. Make sure to use a strong stream of water to remove surface debris, working between each pleat. Avoid using a pressure washer, as it can damage the filter material.

4. Deep Cleaning Your Filter

Once a month, you’ll want to give your filter a more thorough clean to remove oils, lotions, and finer particles:

1. Prepare a Cleaning Solution: Use a specially formulated hot tub filter cleaner. Mix the cleaner with water according to the manufacturer's instructions in a bucket large enough to submerge the entire filter.
2. Soak the Filter: Submerge the filter in the cleaning solution and let it soak for at least 8 hours (overnight works well). This soak helps dissolve oils, lotions, and other contaminants trapped in the filter.
3. Rinse Thoroughly: After soaking, rinse the filter with a garden hose to remove all traces of the cleaning solution. Any leftover cleaner can cause foaming or cloudy water in the hot tub.
4. Dry the Filter: Let the filter dry completely before putting it back in the hot tub. Having a second filter on hand is useful, so you can swap them out while one dries.

5. Using a Filter Cleaning Spray

If you’re short on time, a filter cleaning spray can be a quick alternative:

• Spray the Filter: Remove the filter and spray it thoroughly with a hot tub filter cleaning spray. Make sure to cover all surfaces and get into the pleats.
• Let It Sit: Allow the spray to sit on the filter for about 15 minutes. This gives the cleaner time to break down oils and contaminants.
• Rinse Clean: Use a garden hose to rinse the filter, ensuring all the cleaning spray and debris are washed away.

6. Tips for Effective Filter Cleaning

To keep your filters in top condition, follow these additional tips:

• Rotate Filters: Having a second filter allows you to rotate them, so you always have a clean, dry filter ready to go.
• Avoid Household Cleaners: Using dish soap or other household cleaners can leave residue on the filter, which can cause foaming or interfere with water chemistry. Always use a cleaner specifically designed for hot tub filters.
• Inspect Regularly: While cleaning, inspect the filter for cracks, tears, or other signs of damage. If you notice any, it’s time to replace the filter.

7. When to Replace Your Filter

Even with regular cleaning, hot tub filters have a limited lifespan. Most filters last about 12-24 months, depending on usage and care. Signs it’s time for a replacement include:

• Visible cracks or tears in the filter material
• Persistent cloudy water despite proper cleaning and chemical balance
• Difficulty maintaining water flow or temperature

Key Takeaway

Cleaning your hot tub filters regularly is key to maintaining clear water, efficient heating, and a smooth-running hot tub. By following these cleaning tips and establishing a maintenance routine, you can extend the life of your filters and enjoy a hassle-free hot tub experience. Remember, a clean filter means a clean soak!