Bear in mind that each time you develop a print some of the developer is used up so in practice one must constanly add back to the main solution to top it off. I add back about 50ml of new solution for every 80-100 square inches of print development. So if you doing a lot of printing you will have replaced the entire contents of a liter of devleoper through topping it off.
Secondly, it is important to monitor the pH of the developer to make sure it stays acidic. As you run paper through the developer, especially papers that are a bit alkaline, the solution may become more base unless you take steps to counter it. I add oxalic acid to the solution to keep the pH at around 6.0.
From time to time I filter the solution.
That is about it.
Originally Posted by Neil Poulsen
Last edited by sanking; 01-22-2006 at 02:43 PM. Click to view previous post history.