I'm thinking about building some kind of contraption that will take care of filling/ dumping the chemicals from the development tank.
I think I can manage the mechanical/electrical side of things. The major Problem is my lack of knowledge about suitable materials that will both withstand and not ruin developer and fixer.
Are plastics to be preferred to metals, which materials to avoid etc.
I would appreciate it if somebody could point me in the right direction or share his experiences.