If you’re wondering how to clean hot tub filter the right way, you’re not alone. A dirty filter can cause cloudy water, reduce jet power, and overwork your hot tub’s pump. Luckily, proper filter maintenance isn’t difficult—it just takes a few smart steps and the right routine. With regular care, you can keep your spa running smoothly and ensure safe, clean water for every soak.
Let’s dive in and explore everything you need to know to keep your hot tub filter in excellent condition. Cleaning it properly not only extends its life but also helps maintain optimal spa performance.
Why Cleaning Your Hot Tub Filter Matters
Your hot tub filter is the first defense against dirt, oils, body lotions, and environmental debris that make their way into the water. Over time, the filter gets clogged with these particles, making it difficult for water to circulate freely. This can lead to poor water quality, reduced heating efficiency, and increased strain on the spa’s pump and jets.
Moreover, a dirty filter can disrupt water chemistry, forcing you to use more sanitizing chemicals to balance it. For the most part, cleaning the filter regularly keeps your hot tub clean, energy-efficient, and safe to use. It also helps prolong the life of other spa components like the heater and circulation pump.
Tools and Supplies You’ll Need
Before starting the cleaning process, gather all the necessary tools and supplies to make the job easier. You’ll need a garden hose with a spray nozzle, a soft-bristle cleaning brush, and a commercial hot tub filter cleaner either in spray or soak form. Additionally, have a large container or 5-gallon bucket, rubber gloves for hand protection, and a spare filter if possible.
Having these items prepared will ensure a smoother and more effective cleaning process. A spare filter is especially useful because it allows you to swap filters and let the used one dry completely, improving its performance and longevity.
Step 1: Turn Off the Power
Always begin by turning off the hot tub’s power at the breaker. This ensures that the pump or jets do not activate while you’re handling the filter. Working on a live hot tub can be dangerous and may cause injury or damage to the equipment. Once the power is off, locate your spa’s filter compartment.
Filters are typically found in a housing near the waterline or inside a designated skimmer basket. Gently remove the filter by unscrewing or pulling it out, depending on your model. Check your spa’s user manual for specific instructions if you’re unsure.
Step 2: Rinse with Fresh Water
Use a garden hose with a pressure nozzle to thoroughly rinse the filter. Hold it vertically and spray water between each pleat to remove debris, oils, and other contaminants. Be sure to rotate the filter during rinsing to cover all sides evenly. Take your time and don’t rush this step, as removing surface-level buildup is essential.
Avoid using a high-pressure washer or any kind of abrasive tools, as they can damage the pleats and reduce the filter’s effectiveness. Rinsing should be done every 1 to 2 weeks, especially during periods of heavy spa usage or frequent guest visits.
Step 3: Deep Clean with Filter Cleaner
While rinsing is great for removing loose debris, deep cleaning is necessary to eliminate oils, lotions, and mineral buildup that get trapped deep within the filter material. Use a hot tub filter cleaner available in either a spray-on or soaking solution format. These cleaners are designed to break down stubborn contaminants that water alone can’t remove.
If you’re using a spray cleaner, apply it generously on all pleats and let it sit for 15 to 20 minutes before rinsing thoroughly. For a more comprehensive clean, soak the filter in a solution diluted according to the manufacturer’s instructions. Let it soak for 8 to 12 hours, then rinse well to remove any remaining chemical residue.
Step 4: Inspect the Filter for Damage
Once the filter is clean, take a few moments to inspect it closely. Look for any signs of wear, such as torn fabric, crushed pleats, or cracked end caps. Damaged filters cannot trap debris effectively and may lead to contaminated water or poor circulation.
If you find significant damage or if the filter has been in use for over a year, it’s best to replace it. Most hot tub filters last between 12 to 24 months, depending on usage frequency and cleaning habits. Replacing worn-out filters helps maintain water quality and spa efficiency.
Step 5: Reinstall the Filter and Restart the System
After cleaning and inspecting the filter, allow it to dry completely before reinstalling. If you have a spare filter, install that one while the other dries. Insert the clean filter back into the housing, ensuring it’s properly seated and locked in place according to your spa’s design.
Now, restore power to the hot tub by switching the breaker back on. Activate the jets and circulation system to ensure everything is running smoothly. Check for consistent water flow and listen for any unusual noises that might indicate improper installation.
How Often Should You Clean Hot Tub Filters?
The frequency of filter cleaning depends on how often you use your hot tub. For occasional use, rinsing every two weeks and deep cleaning every two to three months is sufficient. However, if you use the spa daily or entertain guests often, you should rinse the filter weekly and perform deep cleanings monthly.
Regular cleaning helps avoid the buildup of debris and chemical residues that can affect water clarity and system performance. Make it part of your routine spa maintenance to ensure consistent results and better energy efficiency.
Tips for Extending Filter Life
To make your hot tub filter last longer, consider adopting a few best practices. First, keep the spa covered when not in use to minimize contamination from dust, leaves, and insects. This also helps maintain water temperature and reduces strain on the filter.
Encourage users to shower before entering the hot tub to rinse off lotions, oils, and other personal care products. Rotate between two filters if possible, allowing one to dry completely while the other is in use. Finally, avoid using household cleaners like bleach or soap, which can damage filter materials and disrupt water chemistry.
Signs Your Hot Tub Filter Needs Cleaning
Sometimes your hot tub will give you clear signs that the filter needs attention. Cloudy water, decreased jet pressure, and an unpleasant odor are all indicators of a dirty filter. If you notice longer heating times or unusual sounds from the pump, it could also be a result of restricted water flow caused by a clogged filter.
Visually inspecting the filter is a good habit. A gray or slimy appearance often means it’s overdue for a deep clean. Don’t wait for performance issues to arise—proactive maintenance saves time and money.
Choosing the Right Hot Tub Filter Cleaner
There are many filter cleaners on the market, so it’s important to choose one that matches your filter type and cleaning needs. Look for a non-foaming formula that is safe for pleated polyester filters, which are the most common type used in home spas. Biodegradable options are available and are environmentally friendly.
Brands like SpaGuard, Leisure Time, and Ahh-Some are widely recommended by hot tub professionals. Alternatively, you can use a homemade solution of one part vinegar to three parts water for a gentler, natural clean. Always follow manufacturer instructions for best results.
Future Outlook: Advancements in Hot Tub Filtration
The hot tub industry is constantly evolving, and filtration technology is no exception. Some modern spas are equipped with multi-stage filtration systems and UV-C sanitizers that reduce reliance on filters. Others come with automated reminders for filter maintenance, helping users stay on schedule.
Despite these advancements, manual filter cleaning remains an essential task for most spa owners. Staying informed and consistent with care ensures that your investment continues to provide relaxation and enjoyment for years to come.
Frequently Asked Questions
Can I use dish soap or bleach to clean my hot tub filter?
No, using dish soap or bleach can damage the filter and leave behind residue that causes foaming. Always use a filter-specific cleaner.
How long does it take to clean a hot tub filter?
A quick rinse takes about 15 minutes, while a deep cleaning soak can require 8 to 12 hours including drying time.
What happens if I don’t clean my hot tub filter?
Neglecting filter maintenance can lead to cloudy water, reduced jet performance, increased chemical use, and potential damage to spa components.
Conclusion
Maintaining a clean hot tub filter is vital for water quality, equipment longevity, and overall spa enjoyment. By following the right steps and maintaining a consistent schedule, you can avoid costly repairs and ensure a pleasant soaking experience every time.
To recap, turn off the power, rinse the filter, deep clean with appropriate products, inspect for damage, and reinstall it properly. Doing so every few weeks will help you maintain clear water and a stress-free spa routine.