Model # R20841-48
Alternate Part #'s LZA71428A
Power Blast Cal Shock 65 is 68%CalciumHypochlorite with 65% available chlorine. Our best selling shock treatment, Cal Shock 65 is in a fast dissolving granular form so it quickly destroys organic waste, algae and bacteria saving you time and money.
|Pool Volume in gallons||Amount of Shock needed weekly if pool is clear||Amount of shock needed if pool is green|
|10,000 gallons||1 lbs.||2 lbs.|
|20,000 Gallons||2 lbs.||4 lbs.|
|25,000 Gallons||2.5 lbs.||5 lbs.|
|30,000 Gallons||3 lbs.||6 lbs.|
|35,000 Gallons||3.5 lbs.||7 lbs.|
|40,000 Gallons||4 lbs.||8 lbs.|
*Always follow the manufacturer's recommendations/directions located on the product container.Store any un-open bags in a cool and dry location
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I'm looking for pool shock to sanitize my drinking water. Will this work?
I have heard of people using pool shock to sanitize drinking water but I can not promote the use of any pool shock for this purpose. You will want to contact the NSF for further information.
No matter how much chlorine shock I put in my pool the chlorine level is always low. What can I do?
I would first make sure that you are testing the total chlorine AND free chlorine. If they are not the same reading, you may have a chlorine lock. If the chlorine levels are the same, I would check the pH, alkalinity and cyanuric acid levels.
Is it true that if I have a vinyl pool I can only use liquid shock?
You can use granular or powdered shock with a vinyl pool as well. Before adding the shock to the pool, you want to add it to a bucket of pool water to pre-dissolve it.
My swimming pool is clear but when my kids and I went swimming, our eyes burned. My neighbor came by and checked and said that the pool should be fine because he can smell the chlorine. What is wrong with my pool?
I think I have a chlorine lock in my swimming pool. How did I get it and how can I get rid of it?