Shock your pool at sundown and you can swim in it the next morning.
Any time you like calcium is harmless
maybe if you like to hurt yourself
Read the label, but usually it is safe. Pool Masters
you should have your pool tested just to be on the safe side.
Most metal control products are safe to add with no harm to bathers
yes it is safe
Sodium chloride is not anhydrous when I swim in the ocean. I want it anhydrous when I sprinkle it on my food.
My pool store said wait 5 hours, but it probably depends on the amount and concentration (liquid or powder).
yes it is safe
You don't have to swim to be strong However if you have the choice of adding it to your regime of exercise it is very good.
no
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