Sink-tray-portable-idea

[Dave Wooten]

just got a "Large Mixing Tub" from Home Depot--used for mixing cement--it is durable and light weight, has a hole in one end to hang on wall..24+" x 17+" inside diameter--side walls 9"....looks great for apartment darkroom set up....can be stacked inside one another.....

oh and the hole is not in the bottom.

 

[dancqu]

...just got a "Large Mixing Tub" ...

I've minimal sink requirements because I process single
tray, one-shot. Doing that I've a roomy darkroom in a small
space. I may be installing a 16 x 20 processing tray, plumbed.
A 5" deep hypo tray would do. In fact 3" may be plenty. I'll be
able to handle up to that size by processing in the 'sink'. Dan

 

[chuck94022]

I've minimal sink requirements because I process single
tray, one-shot. Doing that I've a roomy darkroom in a small
space. I may be installing a 16 x 20 processing tray, plumbed.
A 5" deep hypo tray would do. In fact 3" may be plenty. I'll be
able to handle up to that size by processing in the 'sink'. Dan

Do you literally mean one shot, or one session? You aren't mixing chems per print are you?

-chuck

 

[dancqu]

Do you literally mean one shot, or one session?
You aren't mixing chems per print are you?

From what I've read my method is the same as used
with a Jobo rotary save for the tray rather than a cylinder.

Are you familiar with rotary processing? Dan

 

[chuck94022]

From what I've read my method is the same as used
with a Jobo rotary save for the tray rather than a cylinder.

Are you familiar with rotary processing? Dan

Very! I have a Jobo CPP-2. But I would imagine you need more chemistry to assure coverage in the tray than you do in a drum. I can use very little in the drum, but that's because it is getting swished over the print during rotation. The tray, as I recall (haven't tray processed in ages) would take more chemistry. I presume you'd want to reuse that same chemistry through the session rather than tossing it as "one shot" implies.

It is also very easy to recover the chemistry for reuse in the Jobo, so Jobo does not imply one shot.

How much liquid do you need to assure even coverage in your tray (and what size is the tray)?

I'm just asking because I've recently been looking at the single tray process so that I can quickly do a print within my tiny little dark space without the hassle and opaqueness of the Jobo. From what I've read, the idea is to pour chemistry in, then pour it back out to the holding jar to be used again.

-chuck

 

[dancqu]

"The tray, as I recall (haven't tray processed in ages) would take
more chemistry. I presume you'd want to reuse that same chemistry
through the session rather than tossing it as "one shot" implies."


On an 8 x 10 basis I'd suggest an 8 oz max. or 4 oz min. solution.
Pre-wet with the smaller volumes. I toss after each print. I could
batch process 2, 3, maybe 4, at one time. I use chemistry more
dilute than usuall. This evening I'll be testing Beers 1 and 2 at
1:3 and 1:7 where 1:1 is suggested. That may not sound so
dilute but recall the little volume used.

No stop of any sort is needed. There is little carry forward from
a more dilute developer and the fresh at start fix has no chance of
by-product build-up. Lately I've been using P. Formulary's A. Thio.
at 1:49; 8 oz, 8 x 10 basis. Two Big Pluses; single bath archival
results and a full 200 8 x 10s per liter concentrate. The one
paper I've tested, an RC graded, showed zero stain with
a two minute fix.

Don't expect 90 second development. I allow for a minimum
of 3 minutes and usually go 5. A year or so ago I went 8 with a
hydroquinone only developer and discovered I had created a
lith type with no intention to do so. Dan


"I'm just asking because I've recently been looking at the single
tray process so that I can quickly do a print within my tiny little
dark space without the hassle and opaqueness of the Jobo. From
what I've read, the idea is to pour chemistry in, then pour it back
out to the holding jar to be used again."

 

[chuck94022]

Thanks! Your process sounds very interesting. I'm glad I asked. Yet another one to put on my list to try!

-chuck