The Paint Pal At the core of the system is a standard-size paint roller, mounted horizontally across a compact container. The roller is partially submerged in water and spins manually, either by rubbing your brush against it or by turning the end caps located on both ends of the roller with your fingers.
With just 12 ounces of water, the roller becomes fully saturated, allowing you to remove paint from your brush simply by brushing against the roller. As the roller spins through the water, it self-cleans—releasing paint into the bottom of the container, where it settles away from the roller, this leave the roller clean for the next time you wipe your brush.