By the way, the EPA says it's your responsibility to fill out the uniform hazardous manifest. Your waste hauler may be an old hand about completing it, but you better double-check his work. You could take the rap for any of his mistakes. Federal law requires you to keep them for three years. People say solvent recovery is an alternative to shipping out my dirty solvent.
Decantation is the cheaper, low-tech of the two methods.
You simply pour dirty solvent into a 55-gallon drum and let the paint solids settle to the bottom. Solvent distillation units turn dirty solvent into clean solvent by heating it up until it evaporates and then condensing it. Paint solids are left behind in the process. Manufacturers and buyer s alike say they pay for themselves within one to two years. Yes, use water-borne paint whenever possible.