Holding tank with quick disconnect valve

Claim 1

In combination with a holding tank having a top wall, a bottom wall and side walls, having an inlet for receiving sewage, and having a valve controlled dump connection for draining sewage therefrom, a sewage agitating and tank cleaning device comprising a fitting extending through one of said side walls of said tank, said fitting having a first section external to the tank adapted to be connected to a source of water pressure, and having a second section extending a short distance into said tank, and a long, thin, flexible tube mounted upon said internal fitting section and extending entirely within said tank, said tube having a length and a flexibility sufficient to permit the free end of the tube to swing through an arc of approximately 270* when liquid under pressure is caused to flow through said fitting and through the tube, and whereby the tube will thrash about within said tank and project said liquid from the end thereof toward the walls of the tank, thereby to agitate the tank contents by means of both the force of liquid projected from the tube and by the pounding of the tube upon the tank, said fitting comprising an internally projecting portion receiving said tube thereon, an intermediate section having a radially outwardly projecting peripheral flange of a diameter substantially equal to the diameter of said hole, said flange being positioned inside of said tank, said intermediate section having a tapered exterior surface extending from a larger diameter inside said tank to a smaller diameter portion outside of said tank, an externally threaded body section on the fitting adjacent said tank wall, an exterior end section on the fitting, and means interposed between said tank wall and said intermediate fitting section for sealing the fitting to the tank wall.