| 摘要 |
A water filtering system for connection to at least one water supply to be filtered including a filter tank containing cartridge-type filter media with the tank being especially configured to provide an evenly distributed water flow through the filter media for efficient water filtration. The system further includes a special plumbing system and controls therefore for establishing a two stage filter cleaning operation wherein water is impingingly directed onto the filter media for flushing of the filter media and the filter tank in the first stage of the filter cleaning operation and water is directed through the filter media in a backwash direction in the second stage of the filter cleaning operation. The controls may be automatic for switching the system from water filtering operation to filter cleaning operation at pre-determined time intervals, or whenever the filter media becomes dirty, and for switching back and forth between the two stages of the filter cleaning operation whenever the system is in the filter cleaning operation. |
