This is inorganic calcium chlorine granulate, fast dissolving.
For the correct dosage, refer to the product packaging. The dosing of chemicals must be carried out with care. It is better to apply multiple doses than to add too much in one go.
NOTE: never dose chlorine and acid (pH-) at the same time due to the risk of chlorine gas formation.
If you require further information, then contact your Starline Dealer for this (find your closest dealer on our website).