Solvents: Solvents work by dissolving dirt. Solvents include petroleum based solvents such as mineral spirits, and naptha, along with organic type solvents like trichloroethane, trichlorethylene, benzene, and xylenes.
Aqueous Cleaning: Aqueous cleaners are normally pH neutral or alkaline water based solutions that break down and remove dirt from part surfaces using detergent and hot water.
ABSOLUTELY!, in many cases hot water and detergent can clean better then solvents, while leaving no residue or coating on your parts. Water based parts washers can effectively clean a wide variety of items ranging from small computer components to large transmissions.
NO, water based cleaning waste is much simpler to deal with. Usually the cleaning solution can be emptied into the sewer system in most cities.