Quote Originally Posted by ekjan View Post
Will it stain clothes/suits?
Probably. Wear old suits. You can remove the stains . . . but you have to use "more chemicals", like Iron Out (sodium hydrosulfite + sodium sulfite -- do NOT let anyone with asthma near that product!)

Is is harmful to health to swim in it?
Stains: not in the least. But cloudy water can mask a variety of problems INCLUDING a swimmer who needs help. But, if it's clear and the sides are free of 'slime', the stains themselves are not any risk at all.