You know you have scale in your spa water if you notice the following:
pH, total alkalinity or calcium hardness too high. Scale is generally found at the bottom of the spa and in the pipes. It is white and rough to the touch.
Do not confuse scale with the waterline ring mark, which is caused by an accumulation of body oils or greasy residue.
pH, total alkalinity or calcium hardness too high: Maintain pH at 7.2 - 7.8, total alkalinity at 100 - 120 ppm and calcium hardness at 150 - 200 ppm. In addition, add 45 mL of Scale Control for spas per 1,000 L of water to prevent scale formation.
Zorbie Sponge absorbs body oils and greasy residue and helps keep the water clear. It is recommended to change the sponge 4 times per year.
pH, total alkalinity or calcium hardness too high: Maintain the level of these three parameters and use 25 mL of Scale Control for spas per 1,000 L of water weekly to prevent scale formation.
* In order to maintain sparkling spa water, make sure to have your spa water analyzed regularly by your specialized retailer to adjust and maintain the following parameters: total alkalinity and calcium hardness.