| 摘要 |
<p>A mixer tap unit has a body (9) connected to a nozzle (10) having two water passages (11 and 12) extending the length of the nozzle. A hot water connection (13), a cold water connection (14) and a filtered water connection (15) are provided for the body (9). In use, the hot and cold water can mix in a mixing chamber (18) in the tap body (9) and flow along the passage (11). Filtered water flows separately along the passage (12). Valves (16, 17 and 19) are provided to respectively control the flow of the hot, cold and filtered water. In a preferred form, a chamber (24) allows carbonisation of the filtered water prior to delivery to the tap body (9), the feed of CO2 gas to the chamber (24) being controllable by a valve (19'). The valve (19') is operated in a first direction to inject CO2 gas into water in the chamber (24), and in a second direction to allow the carbonated water to flow to the nozzle (10).</p> |
