FYI, chemicals contain metallic substance (silver from the paper), mainly in the fixer. A neutralising agent is introduced and chemical left to brew, silver will 'coagulate' into a gunk like base and removed through filtration. another neutralising process i think before being safe for disposal into greywater (or blackwater) sewage system.
collected a few sets of containers, chem-proof, various sizes for use pre and post process. 100ml, 500ml & 2 litres
|about 16 litres spent-chemical|