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(Sorry Bulmer4nc! Â not trying to hijack your thread; but I think this is all related.)Stars
bulmer,I suggest using dichlor for shock. Â Less TDS, allows for superchlorination and is the most cost efficient. Â My philosophy is the fewer different chems you add to your water, the better. Â Sticking with dichlor for shock is one less different chem you have to buy and add.