Brilliance pH Decreaser
$12.99
Of all the water balancing factors pH has the greatest effect on water balance. 

pH measures how acidic or basic the water is. When the pH level rises above 7.8 use Brilliance pH Decreaser to lower your spa water pH level
 
Contains mineral salts for a fresh scent.  Also use Brilliance pH Decreaser to lower your Total Alkalinity.