Introducing ACE™ -
the first integrated salt sanitizing system for spas using diamond technology.
Enjoy clean, pure, luxurious water

Hot Spring® Spas has revolutionized the way that hot tub owners care for their water. The new ACE Salt System is the first and only integrated salt water sanitizing system using diamond technology to let you enjoy the absolute best lifetime ownership experience with a Hot Spring Spa!
Advanced Engineering Generates Cleaning Power
How it works: The ACE System uses a diamond electrode that breaks water molecules apart to create active oxygen. Because active oxygen is one of the world’s most effective natural cleaners, this is the primary way the ACE System cleans water. The active oxygen then combines with salt and other elements in the water to create natural chlorine as well as other powerful oxidizers.
Automated and More Hands-Free - One glance tells you it’s working!

The ACE System:
- Automatically generates cleaning power using salt and water.
- Means fewer bottled products to buy, measure, pour and worry about.
- Saves time because it’s more hands-free.
- Makes it easier than ever to care for your Hot Spring Spa.
- Is an option for the Aria, Vista, Grandee, Vanguard, Envoy, Sovereign, Prodigy, and Jetsetter Hot Spring Spa models and the Flair, Pulse and Glow Limelight Hot Tub models.
Enjoy your Spa More with Softer Cleaner Water: Water Looks, Feels and Smells Great
The ACE Salt System makes your spa water sparkling clean and silky soft. The cleaners are generated from salt and water, so you’re less likely to experience dry itchy skin, irritated red eyes, or the harsh odor of traditional chlorine water care.
Environmentally Safe - Natural & Responsible
The ACE system generates the precise amount of cleaners your Hot Spring spa requires based on its size and your use level. Since there are no excess chemicals, which often occur with manual dosing, your spa water should last longer between changes. That conserves water and saves you money. When you do drain your spa, the water has less impact on the environment because only salt has been added to the balanced water.
Download: ACE Brochure (PDF)

