"Sodium hypochlorite – or bleach, as it is often called – should not be mixed with any other chemical unless adequate engineering controls are in place and personal protective equipment is used," said ...

Dear EarthTalk: My neighbor told me to pour bleach down my drains every week to keep them clear. Is this safe to do? Trish Osterling, via e-mail Bleach is a useful cleaner and disinfectant, but ...