Abstract: A paint system including at least one spray gun located, a paint line changing assembly and a plurality of differently colored paint sources. The paint line changing assembly is configured to selectively connect the at least one spray gun with one of the plurality of differently colored paint sources. The paint system further includes a controller for maintaining at least one of the plurality of differently colored paint sources in a partially fluidized state when not connected to the at least one spray gun and for maintaining the one of the plurality of differently colored paint sources in an operative fluidized state when connected to the at least one spray gun.