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Water Care

Hot Tub Filtration Systems

CONTINUOUS, SILENT FILTRATION In a HotSpring spa, the SilentFlo 5000™ circulation pump works continuously, filtering the spa’s water 24 hours a day. It’s totally automatic, so there’s no need to program long cleaning and heating cycles as in other spas. Nor do you have the wear and tear, energy drain or noise of a large jet pump running during those cycles. Operating silently and efficiently, your HotSpring spa is always hot, clean and ready to enjoy. 100% NO BYPASS FILTRATION With 100% No-Bypass filtration, all the water passes through the filter before it re-enters the spa. With other spas, bypassing occurs when the jets are on, forcing unfiltered water directly back into the spa. With a HotSpring spa, the gallon-per-minute flow of our pumps is carefully matched with each spa’s square footage to achieve balanced filtration, so there’s no need for bypassing.

TRI-X™ FILTER TECHNOLOGY The patented Tri-X™ filter has twice the cleaning area of a similarly-sized cartridge, filtering the water three-dimensionally through both the surface and depth. Dishwasher-safe, it’s easy to maintain. Included as standard on many models, Tri-X filters can be used on any HotSpring spa. Available only on the Summit™, Grandee™, Envoy™ and Aria™. OZONE SYSTEM HotSpring spas come standard with the FreshWater™ III high-output ozone system. Working 24/7, it continuously injects millions of tiny, highly-concentrated ozone bubbles into the water, thereby neutralising contaminants on contact. The system uses a corona discharge cell, requiring virtually no maintenance.

Additional Water Care options

ACE Salt Water Hot Tub Filtration System


A revolutionary way to clean and sanitise your spa with just a little bit of salt, your spa water, and diamond technology.

Starting with Clean Water

Regardless of which system you choose, this one-of-a-kind product makes water care easier by allowing you to start with the cleanest water possible.

Vanishing Act™ Calcium Remover

vanishing-act-tnReduce water hardness in an entirely new way with the Vanishing Act™ calcium remover. Instead of adding chemicals to the water, this water treatment removes calcium particles, leaving the water softer and silky on your skin. Softer water reduces the need for additional chemicals, helps extend the life of your spa water, and helps protect hot tub components from damage that can result from hard water.