A Smarter Way to Look After Your Hot Tub Water.

If you own a hot tub, you’ll know that keeping the water clean and balanced is one of the most important parts of the experience.

It’s also, for many people, the least enjoyable.

Test strips, guesswork, inconsistent readings, and trying to remember when you last checked things can quickly become a chore, especially if the tub is used regularly or by guests.

That’s why this new system from Balboa caught our attention.

What is the Balboa Purezone?

The Balboa Purezone is a smart, self-contained water monitoring system designed specifically for hot tubs and spas.

In simple terms, it replaces manual water testing with an automated system that continuously monitors and logs your water quality.

It measures key parameters such as pH, free chlorine or bromine, total alkalinity, and temperature, all of which are sent directly to a mobile app so you can check your water at any time.

Two Options Depending on Your Setup

Purezone Hover

A floating unit that sits directly in the water. Ideal for private hot tubs and residential use. It can be lifted out when the tub is in use and placed back afterwards.

Purezone Dock

A discreet inline option that sits inside the filter housing. This makes it tamper-resistant and better suited to holiday lets, hotels, rental properties, and wellness spaces.

Why It’s a Big Step Forward

No More Guesswork

The system uses an optical sensor that self-calibrates before every test.

No dip strips, no manual calibration, and no second-guessing results. Just consistent, reliable readings.

Proper Data, Not Just Numbers

Purezone measures parts per million rather than relying on ORP.

In practical terms, this means more accurate readings and better alignment with health and safety standards, particularly for commercial use.

It Saves Time

Instead of manually checking water every day, the system runs tests automatically at intervals you choose.

Each cassette performs multiple tests, and the app tracks how many you have left, so you’re never caught short.

Guidance, Not Just Readings

The app doesn’t just show numbers. It provides clear recommendations based on your water condition, helping you maintain balance without overusing chemicals.

Ideal for Multiple Tubs or Remote Management

If you’re managing more than one tub, or a property you’re not always at, this becomes particularly valuable.

You can check water status remotely, keep records for compliance, and reduce the need for constant manual checks.

How It Works

Once installed or placed in the water, the system works quietly in the background.

It self-calibrates before each test, takes readings at your chosen interval, logs data in the app, and provides maintenance suggestions.

There’s no manual testing, no calibration routines, and no ongoing maintenance.

Who It’s For

Private owners who want a simple, hands-off approach to water care.

Holiday lets and rental properties where consistency and compliance matter.

Hotels and wellness spaces looking for a discreet and reliable solution.

Our Thoughts

We’re always cautious about adding technology for the sake of it, but this feels genuinely useful.

It simplifies one of the most common frustrations of hot tub ownership and does it in a way that’s easy to live with.

For anyone managing multiple tubs, or simply wanting a more straightforward approach to water care, it’s a very strong option.

See How It Works

If you’d like to see the system in action, the video below gives a clear overview of how Purezone works and what it does.