I think my babe is getting that rash that I hear happens to some babies with Charlie's Soap. I used Biokleen free and clear before, and I prepped the washer the way it says on the container, but I wonder if that was enough. Is the issue the icky build up of a previous detergent being rinsed from the washer into the diapers? I use organic cotton prefolds, should I "strip" them? If so, how? Running them through the wash several times with only water? Should I discontinue using Charlie's, or will the problem resolve itself once the residue is gone from the diapers? Ugh, sorry for all the questions. We were happily diapering before this began!