These tablets will dissolve slowly over a period of 3-5 days, dependent on the water temperature, the flow rate through your dispenser and the bacteria load in the hot tub. They are ideal for maintaining a constant chlorine concentration in the water. However, because chlorine tablets are slow dissolving, when relying on chlorine tablets to sanitise your hot tub it will also be necessary to apply an initial dose of chlorine granules to quickly achieve the required chlorine level necessary to ensure adequate sanitation. Chlorine tablets are then ideal for maintaining the sanitiser level without the need for daily checking

Adjust the tablet dispenser to maintain a chlorine level between 3 - 5 ppm.

Never apply chlorine tablets directly to the hot tub water or directly into the skimmer basket.

NB : It is important to maintain a pH level of 7.2 - 7.8 whilst using chlorine to sanitise your spa. Outside of this range the chlorine will not effectively kill all dangerous bacteria.