Everyone deserves a hot tub from The Hot Tub Store.
Locations 
1 800 801 7727 -
Hot Tubs
The Best In Hot Tubs,
From The Most Experienced Dealer - Saunas
- Swim Spas
- Cold Plunges
Everyone deserves a hot tub from The Hot Tub Store.
Hot tub water care, minus the guesswork. FreshWater® IQ is an in-line, self-monitoring system that tests your spa water for you and tells you exactly what it needs — in plain language, right on your control panel.
FreshWater® IQ takes the two hardest parts of hot tub ownership — knowing when to test and what to add — and does them for you.
An in-line sensor continuously monitors your spa water — no test strips, no drops, no trips to the store with a water sample.
Simple, step-by-step instructions appear right on your spa's control panel — exactly what to add, how much, and when.
Cleaner, clearer, natural-feeling saltwater with less effort and fewer chemicals — so your spa is always ready when you are.
FreshWater® IQ builds on the proven FreshWater® Salt System, adding smart monitoring that keeps your water balanced automatically.
The system regularly samples your spa water in-line, tracking pH and chlorine output from the FreshWater® Salt System.
When your water needs attention, clear guidance appears on the control panel — no interpreting colors on a test strip.
Follow the simple prompt, and the system confirms when your water is back in balance. That's it — get back to relaxing.
FreshWater® IQ works hand-in-hand with the FreshWater® Salt System, which generates chlorine naturally from salt to keep water feeling soft and gentle on skin, eyes, and swimsuits.
The newest piece of the FreshWater® IQ ecosystem goes beyond telling you what your water needs — it adds it for you. It manages water balancing: refillable cartridges under the filter lid hold FreshWater® pH Up and pH Down, and the system doses them from anywhere via the app or right at the control panel.
FreshWater® IQ is available on new saltwater-ready models from both of our premium spa lines — so whichever brand fits your backyard, smart water care comes with it.
Available on Highlife® and Limelight® Collection spas, pairing the industry's best-selling hot tubs with truly effortless water care.
Explore Hot Spring® Spas
Available on Utopia® and Paradise® Series spas, bringing smart monitoring to Caldera's signature comfort and design.
Explore Caldera® SpasNot for day-to-day care. FreshWater® IQ monitors your water and tells you what it needs on the control panel. An occasional manual check is only needed for parameters outside the system's scope, like calcium hardness at refill time.
The Dosing System manages water balancing. Cartridges of pH Up and pH Down mount under the filter lid, and the system doses them at the press of a button — from the control panel or the app — then verifies the water responded. Without the Dosing System, FreshWater® IQ tells you exactly what to add and how much.
It depends on your spa size and how often your water needs balancing. The spa tracks usage — and watches the water's response — and prompts you on screen when it's time to refill.
FreshWater® IQ is available on new saltwater-ready Hot Spring® and Caldera® Spas. Visit one of our showrooms and we'll show you which models qualify.
The Salt System sanitizes your water by generating chlorine from salt. FreshWater® IQ adds the smart layer on top: continuous monitoring plus plain-language guidance, so you always know your water is balanced without testing it yourself.
Stop by a showroom or reach out — our water care experts will help you find the right saltwater spa with FreshWater® IQ.
Please fill out the form, call 1-800-801-7727 OR send an email to [email protected] and one of our friendly schedulers will be ready to assist you with your service needs. Our normal service hours Monday through Friday from 10:00am to 4:00pm!
"*" indicates required fields
"*" indicates required fields
