Abstract: A pre-formed threshold sill assembly (106) for use in tiled shower installations (102) allows water to be routed to water delivery devices such as body spray jets(108) positioned in columns(112) mounted on a preformed sill(130). Specific connection pieces, in conjunction with a locking cam (178) and engaging ring arrangement (180) allow pre-plumbed columns (112) to be quickly connected to the pre-formed threshold sill assembly (106). Tiling of the pre-formed threshold sill assembly (106) can be accomplished according to existing practice.

Abstract: The present invention is directed to apparatus for controlling the flow of a fluid, finding particular use in spray jet assemblies such as may be used in shower cabinets and temples. Flow control, in preferred embodiments, is through rotational adjustment of a closure arrangement which progressively obscures a port through which fluid flows, the preferred arrangement being an annular sleeve with profiled body wall which, upon rotation, progressively obscures a radial port in a central body portion about which it is located.