Quote Originally Posted by Willie Jan
in my case the water is coming on top of the image, just like i wash baryta based papers. So this could be the case. besides that i wash for an hour.

thanks, i will try it out.
I think an hour wash for a cyanotype is too long. If you can at all avoid it, have the water enter the tray beside or below the print, not directly on it. That should help the color retention immensely.