| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an internal filtration apparatus provided in a water tank that can simultaneously filter unpurified water extensively in a bottom face area and a corner area in the water tank with operation of a single pump. <P>SOLUTION: A corner filtering body 20 is connected to a corner upper surface of a bottom face filtering body 1 installed on the bottom in the water tank V through a connector J. A bottom face filtering room 4 of the bottom face filtering body 1 and a corner filtering room 30 of the corner filtering body 20 are communicated through the connector J. A suction force is activated by a shared underwater pump O. The filtered water filtered in the bottom face filtering room 4 and the corner filtering room 30 is converged, and discharged outside. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
