Omega Shock (24x1lb bags)
Item #Ref-50-1203
Regular price:$84.99
Sale price:$74.99
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Availability:Usually ships the next business day


Our Refresh Dry Chlorinating Granular is designed for rapid control of algae and for superchlorination at time of pool opening. This Refresh Dry Chlorinating Granular will destroy most strains of unsightly algae within 24 hours. Dead algae will come to rest on the pool floor. Remove the dead algae by vacuuming frequently.

  • 68% Calcium Hypochlorite
  • 65% Available Chlorine
  • 1 pound per 10,000 gallons
  • Broadcast directly into concrete/gunite pools
  • Pre-mix with water for vinyl pools
  • Adds calcium hardness

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  • Superchlorinate to satisfy initial chlorine demand of raw water.
  • Apply 10-20 ounces of Refresh Dry Chlorinating Granular for each 10,000 gallons of water present to provide 5ppm - 10ppm available chlorine.
  • After superchlorination, maintain chlorine residual at 1.0 to 3.0ppm by using a suitable test kit.
  • Test pH frequently.
  • Always maintain pH between 7.2 and 7.6 as determined by a test kit.

In pools without stabilizer
  • If algae develops with resulting greenish color and slimy feeling, then Refresh Dry Chlorinating Granular is necessary.
  • Apply 32 ounces per 10,000 gallons of water by broadcasting granules directly across the surface of the pool.
  • Before allowing swimmers to re-enter pool, check chlorine level with appropriate test kit.
  • Re-entry into treated swimming pools is prohibited above levels of 3.0 ppm of chlorine.
Vinyl Pools
  • Pre-dissolve Refresh Dry Chlorinating Granular in a plastic bucket of water, adding the product to the water.
  • Stir, then let insoluble material settle to the bottom of the bucket.
  • Pour the liquid solution into the deep end of the pool.
  • If algae persists, repeat the treatment.
In pools with stabilizers
  • In pools stabilized with cyanuric acid or with chlorine concentrate, periodic superchlorination is necessary to control algae.
  • Superchlorinate by adding 10-12 ounces of Refresh Calcium Hypochlorite per 10,000 gallons of water every seven days when the average pool temperature is 80°F, or one 32 ounces per gallon per 10,000 gallons every 14 days when the average pool temperature is below 80°F.
  • Follow other directions above.


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