You should observe the following THREE BIG RULES when you are dealing with pool chemicals.

BIG RULE #1: You should never ever mix different pool chemicals.

BIG RULE #2: Never ever add water to dry pool chemicals whether they are in a powder or tablet form.

BIG RULE #3: Never handle any pool chemicals with your bare hands and always wear protective gloves and goggles when handling them. Better be safe then sorry.

And here are the 3 indispensable chemicals that you