Quote Originally Posted by AndreasT View Post
I would like to take up mixing my own chemicals. What I would like to to know is it correct or false to say that if I dissolve the accelerator in a seperate bath and mix the developer shortly before use that the developer has a longer shelf life.
There are several factors that cause developers to go bad. The primary cause is exposure to oxygen. When stored in a filled glass bottle the pH of the developer has little effect on the storage life. Some developers may not mix correctly if the accerlorator is omitted to be added later. So to answer your question mix any developer as the formula specifies and do not make changes.