| 摘要 |
PROBLEM TO BE SOLVED: To provide a water cleaner which has a simple construction and does not emit noise. SOLUTION: This water cleaner includes a pressure tank into which raw water such as well water is introduced, a plurality of filtration cartridges which are removably housed in the pressure tank and are each provided with filtering means for filtering the inflow raw water, a raw water inflow pipe for guiding the raw water into the pressure tank, and a cleaned water delivery pipe for guiding cleaned water filtered by the filtering means and discharged from the filtration cartridges to the outside of the pressure tank, and is characterized in that an oscillatory check valve for back flow prevention is provided in the raw water inflow pipe. COPYRIGHT: (C)2006,JPO&NCIPI
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