| 摘要 |
PURPOSE:To prevent a first filter from sticking of dirts in a stage of discharge of stagnating water and to obtain filtered water without too long wainting time in a stage of reutilization of a filter device by arranging a second filter to above a first filter, and arranging also an opening of a water discharging path to above the first filter. CONSTITUTION:A first filter 2 contg. active carbon sealed in the bottom of the inside thereof is arranged to a main body 1 wherein a water flowing passage connecting an introducing pipe 6 for feed water with a filtered water discharging pipe 7 is provided. A second filter 3 housing hollow yarn film is provided to above the first filter 2. Further, an opening port (a) arranged to above the filter 2 is connected to another opening port provided to the outside of the main body which is at a lower position than said opening port (a), with water discharging pipes 8, 9. As the result, the filter 2 is prevented from sticking of dirts in the stage of discharging stagnating water, and filtered water is obtd. Too long waiting time is not necessary in the stage of reutilization of the filter device. |
