<p>So, I'm setting my my first darkroom on my own and I mistakenly bought larger packs of chemistry than I realized I would need. I read several posts about it for D-76 and people seemed to agree that you needed to mix the 1:1 stock solution no matter what. Assuming I can measure out the powders with a fair amount of accuracy, are there any problems due to exposure of powders to air?<br> This is for D-76, Dektol, Stopbath, and Fixer.<br> Also, if I decide to mix the larger batches, I was confused about how D-76 and Fixer 'make one gallon'. Is it that you add one gallon to the powder (yielding slightly more than 1 gal) or do you put the powder in a one gallon container and fill it with water until it's full?<br> Thanks!</p>
