Hi everyone! Haven't been on here in 3 years, but I'm hoping to get into photography again. I'm pretty green on the chemical part, but I had a thought the other week that I'd like to get some info and opinions on. With kodak T-max developer you get 33-48 rolls of 120-film per gallon (3.8l) developer solution, which is 10-11 rolls per 1 litre. Say I need 0.5 litres to fill my tank, that's 5 rolls worth of developer. What if I want a single use solution and make it 5 times weaker(1:5x5 = 1:25), and just develop for a very long time, until the solution is completely spent? Will this method affect contrast and stuff? If so, could you balance it with increased agitation? I want this to work because: 1) I wouldn't need to keep track of compensation times. 2) More economic, efficient, and enviornmental. 3) I wouldn't have to worry about the solution getting old, because I'd make a new one for each roll. Say I have a developer solution that can only develop 1 roll. Would a big increase in agitation speed up the process without any ill effects? I'm thinking about experimenting with magnetic stirrers to do the agitation(have read a few threads on it, so I know the problems). That's about it. Thank you for your time, and merry consumerism!