In our photo club's dark room we have a Jobo CP2 processor, unfortunately without instructions and nobody who really knows this thing. I wanted to start my Ilfochrome experiments with this, but seem to be unable to fit a larger drum (Jobo 2513 or 2523) to this processor. There are little rollers on the bottom reels to support the drum and they can be turned to face either inside or outside. Mounted facing inside they are perfect for 1500 series tank, and while they would be perfect for 2500 series tanks facing to the outside, they would at the same time collide with both the water basin on one side and the holder for the bottles and beakers on the other side. The whole system looks like it was heavily tinkered with in the distant past (I see hot glue applied between the upper part with the lift and the basin), so it may not be in its original state. Ether way: does the CP2 support 2500 series tanks (with gears on the top) or is it just for 1500 series tanks? Could anyone point me to an instruction manual for the CP2? I have fair experience with the Jobo 1500 tank system but not with the larger systems.