| 摘要 |
A drainage unit for a bath wherein the drainage unit controls water flow in dependence upon the fluid level in the bath. The drainage unit 80 comprises a plug housing 82 which fits within a plug hole 66 of bath 50. The plug housing 80 defines a first chamber 84 with an outlet aperture 86. A drain pipe 88 is fluidly connected to the outlet aperture 86 and comprises a length of pipe which extends away from the outlet aperture 86 to a position which in use, when the drainage unit 88 is coupled to a bath unit or the like, is at a predetermined height that corresponds to a desired maximum water level in the bath 50, above the level of the outlet aperture 86. A later embodiment relates to a drainage unit (200 figure 6) which comprises a movable tube (202 figure 6) open at both ends and which extends upwards from the bath orifice 66 by a predetermined amount which corresponds to a desired maximum fluid level in the bath. |
