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1) Who is correct, the installers or the owners manual in terms of what to add prior/after each use...shock or MSP?
2) Same question, but for the weekly treatment (shock or MSP)?
3) What the @#$% is MSP, anyway? Is it sodium dichlor? If so, do they mean my bottle of shock or my bottle of chlorine conentrate? The definition in the manual says it's not a sanitizer, but isn't that what sodium dichlor is? And aren't the 2 bottles made of the same stuff, but at differnt concentrations?