Dru

Hi, I have a salt water system and have received conflicting advice regarding shocking my pool. My local pool supply house tells me to use the powdered chlorine shock - BUT - a pool service company that repaired a leaking valve told me to use the 100% production boost button on my control panel and run the pool for 24 hours - essentially producing the same amount of chlorine. I have a Jandy AquaPure salt water system. He seemed to explain that the chlorine in powdered form is actually not good in a salt system as it is higher is calcium I think (I can't remember the exact reason). Any help/advice/suggestions is appreciated.