film 12 as seen in fig4 the center water removal manifold 55 in this example is coextensive with a substantial length of the wrap around arc at the second roller 51 the same relationships are used at the first and third roller 50 52 and water extraction devices 45 and 47 in a mirror image structure of like function so only one water removal manifold 55 will be described specifically reference is now made to the detailed views of fig3 to 6 the manifold 55 is advantageously formed in this instance as part of single block 57 of cast or molded form and here of aluminum a positive pressure inlet from the source 28 fig1 leads into a positive pressure manifold 59 in the block 57 see fig4 and 5 also whose side walls 58 are shown only in fig4 and 6 a separator wall 63 in the block 57 separates the internal positive pressure manifold 59 from a negative pressure manifold 64 along a plane substantially bisecting the film 12 length see fig6 the separator wall 63 includes a lateral bore 65 that provides a flow path from the positive pressure source 28 to the positive pressure manifold and then the conduits short segment radial conduits in the block 57 terminating in air nozzles adjacent the film 12 are spaced apart along the water removal arc of the water extraction manifold 55 these conduits and end nozzles are formed by spaced apart wall segments 66 somewhat radially disposed relative to the opposed roller 51 and include end shoes 68 whose end surfaces are also selectively angled the conduits and nozzles create small lateral band like jets of flow onto or away from the film 12 surface the wall segments 66 forming the alternating flow conduits are defined by.