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How to Clean a Hot Tub Filter

By October 31, 2023Hot Tub
How to clean a hot tub filter

Indulging in a hot tub can be a delightful treat that provides a sanctuary of relaxation right in your backyard. However, to ensure a hassle-free and enjoyable experience, filter maintenance is pivotal. A pristine filter effectively rids the water of debris and contaminants, paving the way for a delightful hot tub session. If you’ve never cleaned a hot tub filter before, you’re probably wondering where to start.

This post is your go-to guide on achieving a sparkling clean filter, ensuring your hot tub remains a source of joy and not a cumbersome chore.

Why Cleaning a Hot Tub Filter is Important

Enhancing Performance

A neglected filter can impede the circulation of water in your hot tub, hampering its performance. A routine cleaning schedule for your filter fosters better water circulation, thus enhancing the efficiency of the filtration system. Consequently, water will be crystal-clear and the hot tub experience is markedly improved.

Preserving Water Quality

The filter is the gatekeeper that keeps impurities like dirt, oils, and bacteria at bay. A lapse in regular cleaning can lead to deteriorated water quality, making the hot tub less inviting. By cleaning the filter, you ward off issues like algae proliferation, murky water, and undesirable odors.

Boosting the Longevity of Your Hot Tub

A clean filter doesn’t just ensure a pleasant soak but extends the life expectancy of your hot tub. By averting debris accumulation, you prevent potential damage to other hot tub components, saving yourself from costly repairs or replacements. So, as you nurture your filter, you’re also nurturing your investment.

Remove and soak a hot tub filter to clean it

The Step-by-Step Procedure to Clean Your Hot Tub Filter

Cleaning your hot tub filter is a fairly uncomplicated task. Follow these steps to ensure a thorough cleaning:

1) Disconnect Power: Before you dive into cleaning, disconnect the hot tub from the power source. This step is crucial for your safety and to avoid any electrical mishaps.

2) Filter Removal: Next, access the filter compartment, usually located on the side or bottom of the hot tub, and carefully take out the filter, noting its orientation.

3) Initial Rinse: Employ a garden hose or a sink with a sprayer attachment to rinse the filter. Start from the top, working your way down to effectively remove loose debris.

4) Filter Soak: Then, create a cleaning concoction by blending a non-foaming filter cleaner with water as per the manufacturer’s guidelines. Immerse the filter in this solution, allowing it to soak for the suggested timeframe, typically 1-2 hours, to loosen up oils and contaminants.

5) Scrub and Second Rinse: After soaking, employ a soft brush or a filter cleaning tool to gently scrub the filter, focusing on the pleats and crevices. Follow up with a thorough rinse to wash away residue or cleaning solution remnants.

6) Dry the Filter: Let the filter air dry entirely before placing it back into the hot tub. A damp filter can harbor bacteria and diminish its efficiency.

7) Filter Reinstallation: Finally, with a dry filter at hand, cautiously reinstall it in its housing, making sure it’s correctly aligned and securely fixed.

Proper water chemistry is important to a clean hot tub

Other Recommended Maintenance

Regularly checking the water chemistry and ensuring a balanced pH, as well as frequent inspections for leaks or damages, can augment the performance and longevity of your hot tub. Additionally, it’s advisable to have a professional servicing annually to keep your hot tub in top-notch condition.

When to Call a Professional

Most crucial hot tub maintenance can be done independently. However, if you encounter persistent issues with water clarity or unusual sounds, or if the hot tub components exhibit signs of damage despite regular maintenance, it’s wise to call in a professional. They can provide expert solutions and prevent minor issues from escalating into major problems.


To wrap up, a well-maintained hot tub filter is the cornerstone of a satisfying and safe hot tub experience. By adhering to a routine cleaning schedule and seeking professional help when necessary, you ensure that your hot tub remains a rejuvenating retreat for years to come. If you have any questions or concerns with the condition of your hot tub or spa area, the experts at Alpha Building Inspections are here to help in Merrimack, New Hampshire, and surrounding areas.