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Is liquid chlorine or granular shock better?

Different types of chlorine are used in different parts of the country—there are many parts of the country where liquid chlorine is very popular and there are other parts of the country where liquid chlorine is not readily available.  I should note that there are different types of granular chlorine   Each type of chlorine has its advantages and disadvantages.  They are as follows:

Liquid Chlorine    

Granular Chlorine

Advantages: very inexpensive, fairly safe, effective   

Advantages: long shelf life, fairly strong

Disadvantages: fairly weak, very high pH, short shelf life

Disadvantages: more expensive, some types don't dissolve well