Quote Originally Posted by Ian Grant View Post
While not disagreeing remember that Kodak themselves don't actually specifical recommend using Distilled or Deionised water with Xtol in their Data-sheet. Traces of Iron will cause severe problems with fixers where the Iron and Thiosulphate form a fast acting bleach. I have had minute Iron particles in water way back in the 70's long before Xtol.

Ian, Sal, this comes up occasionally with respect to mixing XTOL. What I've never understood is - XTOL contains an Iron sequestering agent. So why would a small amount of Iron in the water be a serious problem? I can see how it would be a problem with home-mix ascorbate developers, but it shouldn't be an issue with XTOL.

Also - Sal - regarding steam distilled being better than deionized for XTOL, actually I recall Gerald Koch saying it could potentially be the other way around if the steam distilling apparatus introduces Iron into the water.

Just thought I'd throw that extra wrench into the XTOL/water quality debacle.