Yes, I was going to say ferri as well, or blodlutsalt, as we say in Sweden... I just found out about using it without fixer during last session and it will raise contrast. A good way to use it if you don't have a hose is to have quite a large tray with clean water that you tilt so the print is out of the water. Then you can just set down the tray to wash away the ferri.
/matti