NEW FOR 2024


Introducing FreshWater® IQ, the most intelligent salt system on the planet.

NEW FOR 2024


Introducing FreshWater® IQ, the most intelligent salt system on the planet.

FreshWater IQ is an in-line self-monitoring salt system that tells you what it needs to maintain clean, natural-feeling water, with less time and effort. Because we believe your hot tub should take care of you, not the other way around.

Made for Caldera® Spas, FreshWater IQ comes standard on all 2024 and newer Utopia® Series spas and is an available option on 2024 and newer Paradise® Series spas.

How It Works.

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The Salt System automatically generates chlorine from salt to keep your spa water feeling naturally fresh and ready to enjoy.

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The Smart Monitoring System automatically tests your water every hour and provides clear instructions when adjustments are needed.


We Put the IQ in Liquid.

Our patented smart monitoring technology, found only in the FreshWater IQ System, automatically tests your water every hour and is more accurate and dependable than test strips. It then provides clear recommendations when adjustments are needed. Relax, knowing your spa will tell you how to keep your water feeling naturally fresh and ready to enjoy!


Water That Makes You Go Ahhhh.

FreshWater IQ uses the FreshWater Salt System to generate the perfect amount of chlorine. With fewer chemicals, water feels softer and gentler on eyes and skin, and can stay clean and fresh for up to a full year*, conserving water and saving money.


Less Maintaining. More Massaging.

Easy to follow on-screen recommendations tell you what to do to maintain clean, natural feeling water with less guesswork on your part.


The Most Comprehensive Water Care System Available.

Fully integrated and easy-to-use, FreshWater IQ delivers a better ownership experience and peace of mind.

FreshWater IQ Compatability.

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Utopia® Series.

The pinnacle of hot tub design. Featuring a visually stunning exterior, powerful jets, and touchscreen controls, the Utopia Series delivers a top-of-the-line hydrotherapy experience like no other.

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Paradise® Series.

A beautiful blend of practical and premium, designed to deliver your daily Caldera Spas ritual in a remarkable way.

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Vacanza® Series.

All the wellness benefits of a Caldera spa, available at an exceptional value. Step into your hot tub to refresh, renew, and emerge ready for what life has to offer.

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Get a Free Brochure to Explore Simple Water Care.

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Water Enhancers.

Make the most of your hot tub water care system with these chemical-free accessories to ensure you start with fresh, clean water.

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FreshWater IQ Resources.

Product Overview

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Start Up Video

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Related Articles.

Find a Dealer.

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Count on your local Caldera Spas dealer to help make your experience easy and enjoyable.

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*Many factors affect the life of spa water, such as bather load and water chemistry. When these factors are accounted for and the spa is properly maintained, the FreshWater Salt System will keep water clean and clear for up to a full year.