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The Curious Bag
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If your pool is especially dirty after a long period of neglect or a large party, you need to disinfect and sanitize the water to make it safe for swimming. You can use a chlorine or non-chlorine shock.
Chlorine Type Shocks
The three common chlorine shocks are calcium hypochlorite, lithium hypochlorite and dichlor granular chlorine. Your choice will depend on your problem and your local water.
Calcium Hypochlorite
This is a popular and effective shock, except in areas with water with high levels of calcium. Wait eight hours after adding the shock before swimming.
Lithium Hypochlorite
If you have high levels of calcium in your water, use lithium hypochlorite. It is more expensive but will eliminate the occurrence of scale or bleaching.
Dichlor
If you are trying to eliminate algae or are winterizing, dichlor is a good choice for you. You can use this for regular chlorination or for shocking your pool.
Non-Chlorine Shock - Potassium Peroxymonosulfate
This shock chemical is sold as "non-chlorine shock." It is commonly used with bromine treated pools to oxidize any ammonia present, kill bromamines and reactivate the bromine to allow it to continue working to sanitize the water.
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