CYA 230, replaced 1/2 of water...now 217???

[CandyMoss]

rbonin - I thought it was "dangerous to your health" to swim even at 5ppm FC levels? It says on shock packaging to not swim until FC levels have dropped to at least 5ppm. Which is correct? Is it safe to swim in 8ppm?

Sorry for all the questions - I'm new to this.

Thanks,
matz

[Donna's Poolboy]

What did you use to shock the pool after refilling it?