What is the Best Thing to Clean the Inside of an Inflatable Hot Tub?

Picture this: you’ve finally got five minutes of peace, you step into your inflatable spa, and instead of a relaxing soak, you’re greeted by cloudy water and a slick waterline. Not exactly the luxury you had in mind.

The truth is, keeping your inflatable hot tub clean isn’t complicated — but it does take a little consistency. Short answer? The best way is to use gentle cleaners like washing-up liquid, diluted vinegar, or specialist hot tub sprays. Keep the harsh stuff away, and your spa will reward you with crystal-clear water and a longer lifespan. Stick around for a full breakdown of what works, what doesn’t, and a step-by-step guide to stress-free cleaning.

The Best Cleaning Solutions for Your Inflatable Hot Tub

Recommended Cleaning Agents

Mild, Non-Abrasive Cleaners (e.g., dish soap)

Good old washing-up liquid and warm water is often all you need. It’s gentle, safe on PVC or vinyl, and perfect for lifting everyday grime. Think of it as the spa equivalent of giving your car a quick wash.

White Vinegar and Water Solution

A household hero. Diluted white vinegar is brilliant for tackling limescale and mineral build-up, especially around the waterline. It’s natural, cheap, and leaves your spa smelling fresh — just remember to rinse well afterwards.

Specialised Hot Tub Cleaners (e.g., surface sprays, cleaners)

Sometimes, it pays to go pro. Specialised sprays and cleaners are made for the job, designed to handle bacteria, oils, and scale without harming your spa’s lining. Brands like OxiClean or non-chlorine shock are worth keeping on hand if you want an effortless deep clean.

What to Avoid

Harsh Chemicals (e.g., bleach, unless heavily diluted)

It might be tempting to grab bleach from under the sink, but it’s too harsh for inflatable hot tubs. It can weaken the material and shorten your spa’s lifespan. Save it for emergencies and always dilute heavily.

Abrasive Scrubbers or Sponges

Scouring pads can do more harm than good, scratching the liner and leaving weak spots. Stick with soft cloths or sponges — your spa will thank you.

Strong Detergents

Laundry powders, bathroom sprays, and heavy-duty cleaners may smell powerful, but they often leave behind residue. That residue ends up in your water — and on your skin. Best avoided altogether.

A Step-by-Step Guide to Deep Cleaning Your Inflatable Hot Tub

Preparation and Draining

Gathering Your Cleaning Supplies

Before you roll up your sleeves, get everything together: a soft cloth, your chosen mild cleaner, a bucket, and a towel. Nothing’s worse than starting a job and realising you’re missing half the kit.

Draining the Hot Tub Water

Always switch off, unplug, and fully drain your hot tub before cleaning. It sounds obvious, but you’d be surprised how many people try to shortcut this step.

Cleaning the Interior and Components

Wiping Down the Inside Liner

Once empty, gently wipe down the walls and base with your cleaner and a soft cloth. Focus on any slippery patches — that’s usually where oils build up.

Cleaning the Waterline

The waterline is a hotspot for grime: think suntan lotion, soap, or even make-up. A splash of diluted vinegar and a quick wipe will clear it right up.

Cleaning or Replacing the Filter

Your filter works overtime catching dirt and debris. Rinse it under a tap every week, and use a proper filter cleaner monthly. If it looks tired or clogged, replace it. Filters are cheap compared to a broken spa.

Rinsing and Refilling

Thoroughly Rinsing Away Residue

Once the inside is spotless, rinse everything thoroughly. Any leftover soap or vinegar will mess with your water chemistry.

Refilling the Hot Tub and Adding Chemicals

Refill with fresh water and rebalance your chemicals as per your spa’s manual. A little patience here means a much nicer soak later.

Maintaining a Clean Inflatable Hot Tub Between Deep Cleans

Regular Maintenance Checklist

Daily Debris Removal (skimming)

If your spa’s outdoors, leaves, bugs, and grass will find their way in. A quick daily skim takes seconds and saves hours of cleaning later.

Weekly Water Testing and Chemical Balancing

Invest in a simple testing kit and check your pH and chlorine or bromine levels once a week. Balanced water is the key to comfort and cleanliness.

Wiping Down the Surface Between Drains

Every few days, run a soft cloth over the walls. It stops grime from building up and keeps your spa looking fresh.

Using a Hot Tub Vacuum

For sand, grit, or tiny debris at the bottom, a mini spa vacuum is a game-changer. It’s like hoovering, but for your bubbles.

Conclusion

Cleaning your inflatable hot tub doesn’t have to be a chore. With the right products, a bit of routine, and a few minutes of attention each week, your spa will stay hygienic, fresh, and ready whenever you are.

Think of it as giving your spa a little TLC. The reward? Longer lifespan, healthier water, and guilt-free soaks in bubbly bliss.