Just put the kids in the pool for an evening swim and my 3 year old didn't quite make it out of the water before doing #2.

How high do I need to shock to make the pool safe to swim? It's supposed to be 102 here tomorrow (SE Pennsylvania) so I'm sure the kids will want to swim but it's pitch black out back right now so I won't be able to add the chlorine until first thing in the morning.

Jim