Abstract: An automatic drain-off valve for an ablutionary shower system is provided at the lowest point of the supply pipe at or from the shower control or mixing valve to the shower spray head. The drain valve (30) comprises a body (1) having a chamber (7) in which a clack valve (3) is mounted and which is normally biassed into the open position relative to a port (16) surrounded by a seating (8). The port (16) comprises a series of through bores opening to the bottom of the valve for discharging water from the chamber (7) to waste. When water flows through the supply pipe of the shower system, the chamber (7) fills and pressure on the clack valve overcomes the bias applied to the valve spindle (4) by a spring (14) so that the valve close on the seating (8).

Abstract: A spray nozzle for use in the spray head of shower-bathing apparatus and primarily for use with high pressure water systems. The nozzle comprises a ducted body housing a swirl device having fixed guide vanes extending radially from a generally cylindrical hub and substantially flat guide faces angled relative to the hub axis which impart a swirling motion to water flowing through the body and which direct the water onto a converging wall and thence to a single nozzle orifice of right cylindrical configuration, whereby the water issues as a cone-shaped spray which is "full" of water droplets. The nozzle is suitable for use over a wide range of pressures above 1 bar (1 atmosphere) as the level of comfort of the user is maintained at the higher pressures.