bar 53 by conventional means such as screws 65 a hollow tubular stem 67 is carried by the split eyelet 63 and extends into the aperture 61 in spray bar 53 gasket 69 assures a fluid tight seal as is well known positioned within the stem is a mesh strainer 71 a nozzle 73 and gasket 75 combination fluidly communicate through the stem 67 and a removable cap 77 holds the assembly together as is well known spray bar 53 is connected by conventional piping to a source of fluid not shown such as a pump for a pressurized system or a tank for a gravity fed system referring now to fig3 there is shown the flexible absorbent mat means 81 mounted on upper segment 37 of support member 9 mat means 81 extends along the width of drum 3 and contacts the surface of drum 3 to spread fluid from spray means 51 in a uniform distribution on the surface of drum 3 absorbent mat means 81 comprises a plurality of shafts 83 extending downwardly from upper segment 37 said shafts being spaced along the width of drum 3 each shaft 83 slidably extends through an aperture in upper segment 37 each shaft 83 has an upper end on which is threaded a nut 85 that is larger than the aperture so that the shaft 83 cannot slide out of connection with upper segment 37 each shaft 83 has a lower end 87 extending downwardly toward drum 3 affixed to each shaft 83 as by welding is.