| 摘要 |
A microbial resistant water purification and collection system includes a reverse osmosis filter assembly 19 having a filter inlet in selective fluid communication with a system inlet and a filter outlet in fluid communication with a water storage container 12 for storing filtrate. At least a portion of the storage container is located at an elevation above the filter membrane such that filling of the storage container creates a head pressure in the storage container relative to the filter membrane to enable a backflow of filtrate therethrough. A mechanical shut-off valve 27 is interposed the system inlet 11 and the filter inlet to block fluid communication therebetween, wherein activation of the shut-off valve occurs by the physical contact thereof with the storage container upon reaching a minimum head pressure in the storage container relative to the filter membrane.
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