I'm with Flying-D properly diluting bleach is fine as long as there isn't any plants around. Think about it. 1 cup of bleach in your washing machine with 5-8 gallons of water. Your whites are whiter. You wear the clothes with bleach residue next to your sensitive skin. No problem! Now soak your old favorite Converse basketball shoes in the sink with a cup of bleach. 2 days later the material is falling apart. It's all in the mix!

ED