PURPOSE: To facilitate the maintenance and inspection of respective filter media which are different in the service life by mounting tanks contg. 3 kinds of the different filter media freely attachably and detachably to one draw-out body and constructing the draw-out body in such a manner that said body can be freely drawn out of a device body.
CONSTITUTION: The draw-out body 28 is provided to the device body in such a manner that said body can be freely drawn out of the device body. The tank 1 in which the prefiltering filter media for removing dust in water to be treated are housed, the tank 5 in which the filter media consisting of separating membranes are housed and the tank 9 in which the filter media consisting of an active carbon and ion exchanger are housed are freely attachably and detachably mounted to the body 28. A water introducing pipe for introducing raw water to the tank 1 is freely attachably and detachably engaged with the tank 1 and a water introducing pipe for introducing the treated water by the tank 1 to the tank 5 is freely attachably and detachably engaged with the tanks 1, 5. A water introducing pipe for introducing the treated water by the tank 5 to the tank 9 is freely attachably and detachably engaged with the tanks 5, 9. A water introducing pipe for deriving the treated water by the tank 9 is freely attachably and detachably engaged with the tank 9.
OSUMI MASAO
SUZUKI SHOROKU
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