have old 5 gallon paint bucket out in the alley ,,,i pour it all in there put lid on it ,,seems a lot evaporates and turns to muck ...its not hurting our earth or anyone ...im not trying to bend rules of our land but theres only 2 pick -up services in our area ,mostly get old crap from body shops , and there very proud of there service to the piont im not paying that much to come get my old ink