| 摘要 |
The invention relates to a method and apparatus for sterilising water storage tanks (for example on aircraft) and supplying service water to the tanks having a specified content of sterilising agent. The preferred embodiment of apparatus comprises an inlet hose (7) which, in use, is connected to a mains water supply. A valve (10) allows water from the hose to be directed to either of two dosing pumps (14,15). The dosing pumps derive a sterilising agent, for example chlorine dioxide, from a single source, e.g. drums (24,25). The respective pumps (14,15) are pre-set so that one pump (14) delivers water suitable for service use (typically containing 0.5ppm chlorine dioxide) and the other pump (15) delivers water suitable for sterilising use (typically containing 40ppm chlorine dioxide). The outlets of the pumps (14,15) supply respective hoses connectable to the tanks to be sterilised and/or filed. The pumps (14,15) preferably derive their operating power from the water flowing through them. |
