When practicable, a screw-down valve, with wheel and spindle outside the bath, is the best means of letting out the waste water. The supply-pipe should be connected with the main supply just after the water meter. The valve should be of the "screw-down" pattern, either with a thumbscrew, wheel and spindle, or a key.
The internal diameter the measurement given in all the figures of these branch pipes to taps over shampooing basins should be 3/4 in. Cocks and valves for the purposes of the Turkish bath are best of the "gland" pattern. They should have bold handles. Those of the screw-down type are useless, except as stop-cocks.
On the coping may be required metal standards and a neat hand-railing. A water-supply pipe and screw-down tap, an overflow and a waste-pipe will be needed, all of which I have more particularly specified hereinafter. The plunge bath is at times a source of two difficulties it may leak, and it may be below the level of drain.