Use only a clean, dry scoop to measure this product. Do not use the scoop for any other purpose. DO NOT add this product to a floater, feeder or skimmer.
Opening your pool: This product is ideal for opening your pool or treating persistent algae. Distribute 180 grams of this product over the water's surface for each 10,000 L of pool water. This will raise the chlorine residual to 3.9 ppm, and provide 0.4 ppm of copper for algae control. If algae persist for more than one week, repeat dosage.
Routine Sanitization: For the remainder of the pool usage season, use hth® dual action 3” chlorinating pucks in accordance with label directions.
Shock treatment: This product should not be used as your regular weekly shock treatment. Shock treat weekly with an hth® shock product to kill bacteria, burn out organic contaminants, and keep water clear. Immediately after shock treatment, thoroughly clean pool surfaces by scrubbing and vacuuming through the filter. Do not enter the pool until the chlorine residual is 1-3 ppm as measured with hth® test strips.