I just picked up a Paterson print washer for a good price. However, there were no instructions.
I generally know the idea behind it (I think), but I don't know how to assemble it - there are some little bits in the hose bag, that look like they need to be attached somewhere.
I use the Patterson 11x14 washer as my main washer for RC papers. The little pieces with two upright prongs fit in slots in the washer to keep individual prints separate. It can handle 1-11x14, 2-8x10s, or 4-4x5s. It does not require a rapid flow rate, just enough to ensure adequate exchange.