Ian Grant
Subscriber
I have run sink lines, roller transports, and other such with replenishment and my conclusion is...don't try this at home. It's not that you can't do it, but you need to modify your stock solution with either a starter or by running a certain amount of film through the stock developer before the working solution stabilizes. Unless you process a lot of film or use a large quantity of developer you will never have enough "chemical inertia" to overcome any small errors from roll to roll. It also required a densitometer and process control strips to have any real hope of consistent results. (And I know there will be tons on anecdotal rebuttal to that last statement along the lines of we don't need no stinkin' control strips or charts, stating that it's always worked for me without any of that bother.) I eventually decided that running film processing at home it is much more economical to run my developer(s) one shot. (This factors in my time expenditures.)
What a total load of rubbish. It's so easy to replenish developers at home, I began aged 15 while at school, later working commercially and as a photo-chemist.
Ian