hey--I agree with you about the ease of use & all that, it's just that when it comes down to water use, most of the "archival" washers require alot of water to change out the volume. I have a 13-4 yr old Calumet washer that looks pretty close to an old Gravity Works model. It's similar in a way to the one y'all describe above with the partitions and print wand, yet the dividers aren't totally sealed--i.e. the compartments still let water in from one chamber to the next. The flow can be adjusted & the water can either come out a top chamber or from a bottom exit & this is regulated by a hose clamp. I bought the 11x 14, mostly I do 8x10s.
I experimented years ago, with all sorts of fix/wash sequences to find a good workflow. I also experimented with displacing the volume of water in the washer for smaller runs etc, and using a water timer on the unit for soak periods. I used test prints with the HT2 kit from Kodak and discovered the washer gave me an uneven flow across the print surface and in different slots as well. I wound up having to rotate & shuffle the prints every 10-5 minutes through the wash. So I can't just load it up & walk away anyways..it reminds me of running film in our deeptank. For the wash, it uses a "quick dump" tank--which is a big stainless steel tank, the water comes in the bottom and exits from overflow holes at the top, you can dump the whole thing in like 15 seconds with a gate. When you run film, you stand there & agitate the racks a bit or else hypo will cling to them at the tops in little eddys that form in the flow...you do a prewash of 10 min, dump the tank twice, then go to PW tank, then back for a repeat of ten minutes, dump the tank twice. Agitate & shuffle the racks all through it. If you loaded it up & walked away you'd get stains on your film that wouldn't come up for a few years....
But with my washer, it didn't seem to matter much about which sequence I used as far as getting the stain down to an acceptable level. In the end, I wound up having to use a good 65 gallons of water or so per print session.
If I just make a couple of prints, I stand at the tray and keep them separated--and use an inverted glass graduate in the center as well. Before we had a processor we used tray siphons and big trays for years where I work. They did murals in house & used big kreonite sinks to wash them in--someone just stood there and did the whole thing by hand. when I first started working here, they didn't even use siphon for oversize prints--they just had a tray with a bunch of holes drilled in the side, and rocked it under a running hose, every once & a while you'd dump the whole thing....then we got a big Arkay washer, that is basically a flexible basket in a stainless steel tank with holes at the top. It's not a big deal for me to stand next to a tray for an hour-- I stand in the dark & run film by hand, stand at the processor & make prints I don't paritcularly enjoy, why should it bother me to stand at a tray with something I do enjoy?
like they say--YMMV.
KT