Robarb Power Blast Calcium Hypochlorite Shock granular is specially formulated for super chlorination shock treatments. The quick dissolving formula controls algae, kills bacteria and destroys organic contaminants. Robarb Power Blast is compatible with chlorine and salt water chlorine pools.
It is a violation of Federal law to use this product in a manner inconsistent with its labeling.
OPENING YOUR POOL: Always adjust and maintain pH in the 7.2 to 7.6 range. Follow “SHOCK TREATMENT/SUPERCHLORINATION” directions on this package. Allow 30 minutes for product to disperse. Test free available chlorine residual with a pool test kit. Repeat treatment as needed.
SHOCK TREATMENT / SUPERCHLORINATION:
Every 7 days, or as necessary to prevent pool problems, shock treat/super chlorinate the pool by adding 9-18 ounces of this product per 10,000 gallons of water to provide 5 to 10 ppm available chlorine. Additional shock treatments may be required to correct problems which are caused by visible algae, high bathing loads, heavy wind and rainstorms. Additional shock treatments may also be required to correct problems such as unpleasant odors and eye irritation. Check the available chlorine with a suitable test kit.
WATER BALANCE: For best product performance, swimmer comfort, and crystal clear water: Maintain pH in the range of 7.2 to 7.6. Maintain total alkalinity in the range of 60 to 120 parts per million (ppm). Maintain calcium hardness above 200 ppm. Use a test kit that measures all these ranges. Use Robarb™ Pool Care Products to make adjustments. Follow label directions for each product. Re-entry into treated pools is prohibited above due to risk of bodily harm.