If you own an inflatable hot tub in Canada, you already know how good it feels to sink in after a long day especially when the temperature drops. But warm water sitting in a confined space is a magnet for bacteria growth, algae, and all kinds of microorganisms that can turn your relaxing soak into a health problem. Skin infections, eye irritation, and respiratory irritation from hot tubs are real risks when hot tub hygiene is ignored.
At Relxtime, we want your spa experience to stay safe and enjoyable. Whether you are cleaning it for regular use or getting ready for winter storage, this step-by-step guide covers exactly how to deep clean an inflatable hot tub the right way.
Why Deep Cleaning Your Inflatable Hot Tub Actually Matters ?
Many people top up their water, toss in a chlorine tablet, and call it clean. That is not deep cleaning. Over time, body oils, sunscreen, dead skin cells, and dirt build up on the liner walls and at the bottom of the tub. This film is called biofilm, and it is where harmful microorganisms in warm water thrive even when the water looks clear.
Regular hot tub sanitation is not just about clean water. It protects your health and extends the life of your tub.
What You Will Need: Hot Tub Cleaning Kit for Inflatable Spa ?
Before you start, gather your supplies. Having the right tools makes the job faster and keeps the liner safe.
| Item | Purpose |
|---|---|
| Garden hose | Draining and rinsing |
| Soft cloth or sponge | Scrubbing interior walls |
| Inflatable spa cleaner or mild detergent | Cleaning the liner |
| Water testing strips | Checking chemical balance |
| Chlorine tablets or hot tub sanitizer | Disinfection |
| pH increaser / decreaser | Balancing water chemistry |
| Filter cartridge (replacement) | Clean filtration |
Avoid harsh abrasive cleaners they can degrade the PVC liner. Always choose products labelled safe for inflatable spas.
Step-by-Step: How to Deep Clean an Inflatable Hot Tub ?
A simple step-by-step guide to thoroughly deep clean your inflatable hot tub for safe, fresh, and long-lasting use.
Drain and Clean Hot Tub Completely
The first step is to fully drain the tub. Turn off the pump, attach your drainage hose to the drain valve, and let the water empty completely. Do not try to clean the tub with water still sitting in it you will just be pushing dirty water around.
Once empty, tip the tub gently to let any remaining water pool toward the drain. This also tells you how to clean the bottom of a hot tub properly you cannot reach it well with water in the way.
Scrub the Interior Walls and Base
Now that the tub is empty, use a soft cloth or sponge with an inflatable spa cleaner. Work your way around the inside walls in circular motions. Pay close attention to the waterline where body oils and product residue collect as a thick ring.
For the bottom, get down into the tub and scrub thoroughly. Cloudy hot tub water often starts from neglected buildup on the base that gets stirred back up when the jets run.
Do not use a stiff brush. The liner is durable but not indestructible scratching it opens the surface to more biofilm attachment.
Remove and Rinse the Filter Cartridge
The filter is one of the most overlooked parts of inflatable hot tub cleaning. Remove the filter cartridge and rinse it under a garden hose, working from top to bottom between the pleats. If it has been more than a week or two of regular use, replace it altogether.
A clogged filter cannot trap bacteria, debris, or body oils it just recirculates them. A fresh filter cartridge is a small cost compared to a dirty, unsafe soak.
Read More: Hot Tub Protection Guide in winter
Rinse the Tub Thoroughly
After scrubbing, rinse the entire interior with fresh water. Make sure all soap or cleaner residue is completely gone before refilling. Leftover cleaning product can cause excessive foaming and throw off your chemical balance hot tub readings.
Refill and Restore Water Chemistry
Refill the tub with clean water. Now is the time to test and treat. Use water testing hot tub strips to check pH, alkalinity, and sanitizer levels.
Here are the target ranges for safe hot tub water:
| Parameter | Ideal Range |
|---|---|
| pH | 7.2 – 7.8 |
| Total Alkalinity | 80 – 120 ppm |
| Chlorine (sanitizer) | 3 – 5 ppm |
| Calcium Hardness | 150 – 200 ppm |
Add chlorine tablets for hot tubs or your preferred hot tub sanitizer, adjust pH as needed, and run the pump for at least 30 minutes before soaking.
How to Clean Inflatable Hot Tub Before Storing It ?
If you are preparing for the end of the season a real concern for Canadian winters the process is the same, but a few extra steps matter:
- After draining, let the liner air dry completely before folding. Trapped moisture causes mould inside a stored tub.
- Wipe down the exterior and the inflatable walls with a mild cleaner.
- Store the deflated tub in a cool, dry place away from sharp objects.
- Remove and store the filter cartridge separately in a dry bag.
Skipping this spa cleaning routine before storage is one of the main reasons people open their tub in spring to find mould, foul odours, and a cracked liner.
What Chemicals Are Needed to Clean an Inflatable Hot Tub?
For ongoing clean hot tub water, you need:
- Chlorine tablets or bromine — primary water disinfection
- pH up / pH down — keeps water comfortable and algae-free water
- Alkalinity increaser — stabilizes pH swings
- Shock treatment — breaks down organic waste buildup every 1–2 weeks
- Algae prevention treatment — especially useful in summer months
A proper hot tub maintenance routine keeps these levels balanced week to week, reducing how often you need a full deep clean.
Conclusion
Knowing how to deep clean an inflatable hot tub is not complicated it just takes a bit of time and the right products. Drain it completely, scrub every surface, replace the filter, rinse, refill, and balance your water chemistry.
Done regularly, this spa cleaning routine protects you from skin infections, eye irritation, and respiratory irritation from hot tubs and it keeps your tub in great shape year after year.
At Relxtime, we carry everything Canadians need to keep their inflatable spas clean, safe, and running smoothly through every season. Take care of your tub and it will take care of you.
Frequently Asked Questions?
Here are some frequently asked questions given below:
How often should I deep clean an inflatable hot tub?
Deep clean your inflatable hot tub every 4–6 weeks with regular use, or any time the water turns cloudy, develops an odour, or becomes foamy. If multiple people use the tub frequently, clean it more often.
What can I use to clean an inflatable hot tub liner safely?
Use a cleaner specifically labelled for inflatable or vinyl spa surfaces, or a small amount of mild dish soap diluted in water. Avoid bleach, abrasive scrubs, or anything with strong solvents these degrade the PVC liner over time.
How do you clean the bottom of a hot tub effectively?
Fully drain the tub first. Once empty, step inside and scrub the base with a soft cloth and an appropriate cleaner. The bottom collects the most buildup, so it needs direct attention you cannot clean it properly with water still in the tub.
Can I use regular chlorine tablets for an inflatable hot tub?
Yes, but use tablets designed for hot tubs or small spas, not pool chlorine tablets. Pool chlorine is often too concentrated for the smaller water volume of an inflatable spa and can damage the liner or irritate skin.
How do I stop algae growth in my inflatable hot tub?
Keep your sanitizer levels consistently between 3–5 ppm, maintain proper pH, and shock the water weekly. Algae prevention also means keeping the cover on when the tub is not in use, since sunlight accelerates algae growth significantly.
