Just wanted to add -- there's no reason why your kids can't swim now.

Just tell them to keep their eyes closed and wear old swimsuits. People are FAR more chlorine resistant than women's swimwear -- dermatologists uses 50 ppm (with ZERO stabilizer -- VERY different) bleach baths to treat even pediatric patients. However, 80 ppm of free chlorine will be irritating to eyes, if not as irritating as even low combined chlorine levels.