Hot tubs can build up dirt, body oils, debris, and cloudy water quickly without regular cleaning and balanced water care. Learning how to clean a hot tub properly ensures your spa remains a relaxing retreat rather than a maintenance headache. We know that keeping your water pristine is essential for water safety, equipment longevity, and the overall user experience.
This guide will walk you through a simple, step-by-step cleaning process. We will also share practical maintenance tips to keep the water clean longer. By following these straightforward instructions, you can protect your investment and enjoy clear water every time you soak.
Regular cleaning helps reduce buildup, residue, and biofilm inside the tub and plumbing lines. It also protects the acrylic shell from staining and discoloration over time.
Taking the time to maintain your spa properly means fewer costly repairs and more time enjoying the warm, soothing water.
How Often Should You Clean a Hot Tub?
Cleaning your hot tub happens on different levels, ranging from daily care to deep cleaning. Light maintenance should occur after each use or at least weekly. This includes checking the water, skimming out floating debris, and wiping down exposed surfaces above the water line.
Monthly care may involve deeper filter cleaning, checking water balance, and inspecting the tub for residue or buildup. A full deep clean is necessary every three to four months. During a deep clean, you will usually drain the tub completely, clean the interior shell, rinse the surfaces, and, when needed, use a spa line flush product according to the manufacturer’s instructions.
The exact frequency depends on several factors. Usage frequency and the number of users play a major role in how quickly the water becomes dirty. The environment also matters, as outdoor exposure introduces more debris, pollen, and contaminants into the water.
If you use your spa daily or host frequent gatherings, you will need to perform these cleaning tasks more often to maintain safe water conditions.
What You Need Before Cleaning Your Hot Tub
Gathering the right supplies makes the cleaning process much easier and more efficient. We recommend preparing the following items before you begin:
- Hot tub cleaner (non-abrasive)
- Soft cloths or sponges
- Filter cleaner solution
- Garden hose
- Submersible pump or spa drain/vacuum tool (such as a hand-held drain, optional for faster draining)
- Water testing kit
Using non-abrasive, spa-safe products is important to avoid damaging the acrylic surfaces. Abrasive scrubbers can scratch the shell, while harsh chemicals may damage spa surfaces or disrupt water chemistry after refilling.
Household cleaners can also throw off your water chemistry later and may contribute to foaming or cloudy water after refilling.
You can find many of these essential items in our hot tub accessories collection to ensure you have the right tools for the job.
Step-by-Step Guide to Cleaning a Hot Tub
Here are steps you can follow on how to clean a hot tub:
Step 1 – Turn Off Power to the Hot Tub
Always turn off the power to your hot tub at the breaker before you begin cleaning. This step is crucial for your safety and protects the spa equipment from running dry. Operating the pumps without water can cause severe damage to the motors and heating elements.
Step 2 – Drain the Water Completely
You can drain the water using the built-in valves, a submersible pump, or a spa drain/vacuum tool. A pump or vacuum tool speeds up the process significantly, saving you valuable time. For the full process, read our separate how to drain a hot tub guide.
Step 3 – Clean the Interior Shell
Once the tub is empty, wipe down the interior surfaces with a non-abrasive cleaner and a soft cloth. Pay special attention to the water line where oils and lotions tend to accumulate. Do not use harsh household chemicals, as they can damage the shell and cause foaming when you refill the tub.
Step 4 – Clean Jets and Hard-to-Reach Areas
Dirt and grime often build up inside the jets and crevices over time. Use a soft sponge, spa-safe brush, or specialized hot tub vacuum to remove debris from seats, corners, and other hard-to-reach areas. Removing this hidden debris prevents it from circulating back into your fresh water.
Step 5 – Clean or Replace the Filter
Remove the filter and inspect its condition carefully. You can rinse it with a hose for regular maintenance or use a filter cleaner solution for a deep clean. If the filter media looks frayed, feels brittle, has damaged pleats, or remains discolored after cleaning, replace it according to your spa manufacturer’s recommendations.
Step 6 – Rinse and Refill the Tub
Rinse the interior shell completely with your garden hose to remove any leftover cleaning residue. Once rinsed, refill the tub with fresh water using the hose. Placing the hose directly into the filter compartment helps prevent airlocks in the plumbing lines as the tub fills.
Step 7 – Restore Power and Balance the Water
Turn the power back on and let the water circulate through the system. Test the pH, alkalinity, and sanitizer levels with your water testing kit. Adjust the chemicals as needed to balance the water, ensuring it is safe and comfortable for your next soak.
How to Clean a Hot Tub Filter Properly
Filter cleaning is a vital part of the overall hot tub cleaning process. We recommend a weekly rinsing with a garden hose to remove loose debris, hair, and leaves.
For a deeper clean, soak the filter in a specialized filter cleaner solution once a month to break down trapped oils and minerals.
Dirty filters reduce water circulation and force your pump to work harder, which decreases energy efficiency and increases wear on the equipment. If the filter media looks frayed, feels brittle, or remains discolored after a deep clean, it is time for a replacement.
Do not use a pressure washer or stiff brush to clean the pleats, as the high pressure and stiff bristles can tear the delicate filter material.
If you have a spare filter, let the cleaned filter dry completely before rotating it back in. Do not leave your spa running without a properly installed filter.
Common Mistakes to Avoid When Cleaning a Hot Tub
Many hot tub owners make simple mistakes that can damage equipment and make maintenance more difficult.
- Using Household Cleaners: Products like bleach, glass cleaner, or abrasive powders can damage acrylic surfaces and cause excessive foaming.
- Skipping Filter Cleaning: Leads to poor water circulation, cloudy water, and added strain on the pump.
- Not Rinsing Cleaning Products Thoroughly: Residue can create foamy, unbalanced water that is difficult to fix.
- Refilling Without Balancing Water Chemistry: Untreated or unbalanced water can become cloudy, uncomfortable, and harder to sanitize.
- Draining Too Infrequently: Results in unsanitary conditions and persistent cloudy water.
- Draining Too Often: Wastes water, chemicals, and the energy needed to heat fresh water.
How to Keep Your Hot Tub Clean for Longer
Keeping your hot tub clean for longer comes down to consistent habits that reduce contamination and support proper water balance.
Use a Properly Fitted Hot Tub Cover
A properly fitted cover helps keep out leaves, dust, rain, snow, and outdoor debris between uses. It also traps heat, saving you money on energy costs. Explore our selection of hot tub covers to find the perfect fit for your spa. For cover-specific care, read our full guide on how to a clean hot tub cover safely.
Rinse Before Entering the Tub
Rinsing off in the shower before entering the tub reduces the amount of body oils, lotions, deodorants, and cosmetics introduced into the water. This simple habit significantly lightens the load on your filter and sanitizers, keeping the water clearer for much longer periods.
Maintain Proper Water Chemistry
Testing and balancing your pH, alkalinity, and sanitizer levels regularly is essential for water clarity. Proper water chemistry prevents bacteria growth, protects the equipment from corrosion or scaling, and keeps the water safe and comfortable for soaking.
Clean Filters Regularly
Stick to a consistent filter maintenance routine to ensure optimal performance. Rinsing the filters weekly and deep cleaning them monthly ensures optimal water flow and filtration, preventing cloudy water and reducing strain on the circulation pump.
Limit Debris Exposure
Outdoor factors like leaves, dust, pollen, and wind introduce contaminants into the water quickly. Keep the cover secured and locked whenever the tub is not in use to limit this exposure and prevent unwanted debris from sinking to the bottom of the spa.
When Should You Fully Drain and Deep Clean Your Hot Tub?
A full drain and deep clean is necessary every three to four months as a general guideline for most residential spas. You should also perform a deep clean after periods of heavy use, such as after hosting a party or having multiple guests over a weekend.
If the water becomes difficult to balance despite adding the correct chemicals, it is time to start fresh with clean water.
Watch for clear signs like persistent cloudiness, strong musty odors, or excessive foam buildup that does not dissipate. These can be signs that the water has accumulated too much residue, minerals, or dissolved solids and may need to be drained and replaced.
Using a QuickDrain Hand-Held Drain makes this draining process much faster and easier, allowing you to complete the deep clean efficiently.
Frequently Asked Questions
How Do You Clean a Hot Tub Without Draining It?
You can perform light cleaning without draining the tub by wiping down the exposed water line with a soft cloth or sponge. You should also use a skimmer net to remove floating debris and a spa vacuum to clean the seats and floor.
Maintaining proper water chemistry and cleaning the filters regularly will keep the water clear and sanitary between full drains.
What Is the Best Thing to Clean a Hot Tub With?
We recommend using spa-safe, non-abrasive cleaners specifically designed for hot tubs and acrylic surfaces.
Do not use household chemicals like bleach, ammonia, or glass cleaner, as they can damage the shell, degrade the pillows, and disrupt the water chemistry when you refill the tub.
A diluted white vinegar and water solution may work for light surface cleaning, but always check your hot tub manufacturer’s care instructions first and rinse thoroughly afterward.
How Long Does It Take to Clean a Hot Tub?
Light weekly maintenance takes only about ten to fifteen minutes to check the chemicals, wipe the water line, and rinse the filter.
A full deep clean, including draining, cleaning the shell, rinsing, and refilling the tub, typically takes two to three hours. This timeframe depends largely on your water pressure and the draining method you choose to use.
Final Thoughts
Regular cleaning is the key to enjoying safe, clear water in your spa year-round. By following the steps in this guide, you can maintain your equipment, prevent costly repairs, and ensure a relaxing experience every time you soak.
Preventive habits, such as balancing chemicals weekly and rinsing off before use, make the deep cleaning process much easier and less frequent.
Proper accessories help maintain cleanliness and reduce your overall effort significantly. Investing in a properly fitted premium spa cover helps protect your tub from debris, retain heat, and reduce how often outdoor dirt and leaves get into the water.
With a consistent routine and the right tools, your hot tub will always be ready for a relaxing, worry-free soak.
