space above and below the central air supported layer 106 in order to further preserve the surface of the upward facing aluminum 107 and the lower facing aluminum 108 the adjustable distributing valve 113 controls air flow in order to supply the right amount of air above and below the central air supported layer 106 a primary blower 114 supplies air to the skating area recesses 115 made of clear plastic are taped into the lower air supported layer 109 and contain lights 116 which shine through the clear plastic recesses 115 and out over the downward facing aluminum 108 which reflects the light down through the translucent polyethylene 109 which in turn provides warm glare free illumination of the ice rink 84 below when putting up the central and lower polyethylene sheets 106 and 109 it is helpful to tape a few extra feet of polyethylene along their edges so that they will hang loose when attached to the side panels 114 then inflate the area below and pull out the slack in the polyethylene sheets 106 and 109 and attach them permanently to the side panels 104 the ice rink of fig8 and fig9 is of novel design and is shown in detail in fig1 an ice base 121 is built up during freezing weather and is flooded level and.