Quote Originally Posted by CrisL
If you google proteam supreme, you will find some stuff related to the use of tetraborate (proteam is a pool additive very similar to borax, but much more expensive) and its use as an algaecide.
Proteam Supreme is *like* borax, the same way BioLab's Balance Pak 100 is *like* baking soda.

. . . Proteam Supreme *IS* borax!

The algicidal properties are unproven, and I've never seen any evidence that borax makes the water clearer. But, it won't precipitate calcium carbonate (making it cloudy) the way baking soda can, if the pH and calcium levels are high.

Ben
"PoolDoc"