Every hot tub needs chlorine or bromine to help sanitize the water – even saltwater spas. ClearBlue allows you to reduce the chlorine to drinking water levels. This gives you the protection of a proven sanitizer without the downsides.

Yes. You can upgrade your saltwater spa to a mineral spa by adding a ClearBlue Mineral System. You can reduce the salt chlorinator’s output to lower chlorine levels. This helps keep the pH in range and gives you more life from the salt cell.

ClearBlue builds up minerals in the water which prevent algae and bacteria growth whereas ozone uses a gas to destroy microorganisms as the water passes through a chamber. Minerals are dissolved and working in all parts of the spas at all times whereas ozone is only working when the pump is running.

UV systems use light to slow the growth of organisms in the water. Water is treated as it passes through the UV chamber, so it takes a long time for the entire spa to be treated. Since there is no residual, it is not effective at controlling bacteria in hard-to-reach places.

Cartridges that you plumb inline or drop in the skimmer also use minerals to control bacteria and algae. There is no way to control the output so it’s hard to keep the levels right. Mineral cartridges use dissolved chemicals to release the minerals whereas ClearBlue releases 99.9% pure elemental silver, copper and zinc. You don’t always get 100% usage of a cartridge like you do with ClearBlue, so there is more waste.