Robelle Winter Pool Closing Shock for Swimming Pools 2-Pounds

Robelle Winter Shock is a powerful oxygen-based oxidizer. When used regularly this product will help eliminate contaminants introduced by bathers and environmental factors like rain and wind. This product will not raise chlorine levels or produce combined chlorine. Robelle Winter Shock is gentle on pool surfaces. It dissolves quickly and will not bleach or fade vinyl liners or painted surfaces. Robelle winter Shock restores sparkle and clarity to pool water. It will not increase calcium hardness or stabilizer levels. Robelle Winter Shock contains no chlorine or other disinfectants. For routine disinfection of pool water use 3 giant tabs or Dichlor granule. Use Robelle Winter Shock: at initial treatment or at pool opening, weekly, after heavy user, after heavy rain or wind, or at pool closing. For weekly care, and after heavy use, heavy rain or wind, 1. Add 1 pound of this product per 10,000 gallons of pool water every week. Only use when no bathers are present. Bathers can return to the pool water after 15 minutes. 2. Broadcast product uniformly over the surface of the water, adding 2/3 of the total dose into the deep end of the pool. 3. Run the pool filter for 8 hours. For initial treatment, or when opening or CLOSING pools for the season, add 2 pounds of Robelle Winter Shock per 10,000 gallons of pool water. Public pools generally require more frequent doses of oxidizer than residential pools because they have greater bather loads. A dose of 1 pound of this product per 10,000 gallons of water should be added each week. For initial treatment and during periods of hot weather or if bather load is heavy, increase treatment to 2  times per week.