Well, we have the same problem, no matter what I do the stink comes back, so I finally gave in and use a *tiny* bit of bleach once every month or two. It sucks...I hate using the bleach, but I hate the nasty diaper smell even worse(if that wouldn't turn people off cding, I don't know what would). So my advice is, if you have tried everything(calgon, extra rinses, less det., more det., sportswash, stripping)then go for the bleach. I really only need to do it every once in a while, and I use less about an eighth of a cup for a front loader.
HTH~Debi
HTH~Debi