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Switch from Di-Chlor to Cal Hypo

Why switch from di-chlor shock to cal-hypo to super-chlorinate, or shock, your pool?

Characteristics of Di-Chlor:

  1. Stabilized (contains cyanuric acid) and contributes to chlorine lock
  2. Fast-dissolving granular product
  3. Typically, only available in one strength
  4. Raises cyanuric acid levels, which will lead to overstabilization. If using tri-chlor tablets as well, over-stabilization will occur very quickly
  5. pH of 6, which is slightly acidic

Characteristics of Cal Hypo:

  1. Un-stabilized (contains no cyanuric acid) and will not contribute to chlorine lock
  2. Fast-dissolving granular product
  3. Available in different strengths for specific uses and costs
  4. Readily available in all sorts of stores
  5. Raises calcium hardness, which helps protect pool surfaces and equipment
  6. pH of 10, which is basic and will not damage surfaces and equipment
  7. Pound for pound you get more chlorine from Cal Hypo than Di-Chlor
  8. Cal Hypo does not contribute to overstabilization and will result in fewer pool drainings needed to reduce stabilizer levels.

Simple instructions for using Cal Hypo shock:

  1. Adjust pH into proper range: 7.2 – 7.6 and maintain TA at the lower end of 60-100 ppm.
  2. Add product during evening hours while pump is running
  3. Broadcast the product evenly over a wide area in the deepest part of the pool
  4. If granules settle to the bottom of the pool, use brush to disperse