Prior to using this product, adjust the pH levels to the ideal range of 7.2 - 7.6 to promote bather comfort, and protection of spa plant equipment and effective chemical use.
These smaller chlorine tablets are designed for use with chlorine feeders or with floating dispensers. They will slowly erode over a period of 3-5 days, depending on the water flowing over them. As they release chlorine relatively slowly it may be necessary to shock dose or oxidise prior to their use to first establish some chlorine more rapidly.
Label may differ.