Chemistry storage and use questions

[PlantedTao]

I am finally ready to start my first printing session in my darkroom. I just received all my supplies from Freestyle and have some basic beginner questions about mixing up chemistry. I will be using all Silvergrain products

I will be making 8x10 prints to start. I will be using 11x14 trays. My guess is that I measure out per the manufacturers directions, filling up the tray with water and then adding the developer (the same goes with the other chemicals). How much final solution do I need in my 11 x14 tray? Does this go the same for each chemical? Let's just say that I am going to do 25 prints.

If the chemistry is not exhausted is sounds like I can leave everything in the trays for a day or so? or should I pour the chemistry out into airtight jars? I would most likely print the next day if the stuff wasn't exhausted... Is there an easy way to tell when developer is exhausted?

Once the seals of the chemistry have been open (original containers), do I need to transfer these to other airtight containers to keep it fresh? I have no idea how fast I will be going thru this stuff and dont want to be wasteful 🙂

Is there any other tips, tricks or helpful advice regarding chemistry that I should know?
Thanks in advance!

Jason

 

[plummerl]

Hi Jason,
I would recommend mixing the chemistry in a liter graduate, not in the tray. For what you describe, I generally make up a liter of working solution (mine is Formulary BW-65) which is good for around 20-25 prints and will live for about 8 hours.

Usually the manufacturer will list a capacity for the working solution. For stock solution, I generally try to divide the solution into groups of smaller bottles, in a size that makes sense.

 

[PlantedTao]

thanks larry for the advice!
Have fun at brouwer's and I hope to have a print the next time I see you.

Cheers.

 

[bsdunek]

With due respect, Larry, I mix my developer and stop in the trays. I just find it easier. My 11X14 trays work good with 66 oz. So, 22 oz Dektol stock and 44 oz, water. For stop, it's 2 oz. 28% acetic acid and 64 oz. water. Fix is as mixed in the gallon jug. Just pour it in to the same depth.
If I am going to print over the weekend, I mix my solutions Friday. When I'm not printing, I have wood covers for the trays to minimize oxidation and keep dirt out. As I only work Tuesday thru Thursday, I have four day weekends. I have mixed Friday morning and worked on and off through Monday afternoon this way. I'll admit, that by Monday afternoon it takes a little longer in the developer, but everything comes out OK. I do watch my fixer action, and of course, wash fully.
In the end, developer and stop go down the drain and the fix goes back in the jug. I do keep count of prints so my fixer isn't exhausted.
Just my way of working.