| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a chemical storage container mounted to an installation portion of a chemical feeder, avoiding undesirable deposits or residues of calcium carbonate with the use of calcium hypochlorite pellets. <P>SOLUTION: The chemical storage container (74) includes the chemical consisting mainly of calcium hypochlorite, a plastic molded body holding the chemical, having an opened lower end, a closed upper end, and an externally threaded part adjacent to the lower end, and screwed to the installation portion which is complementary threaded internally, and a porous cover (70) extended to cross the opening of the container, supporting the chemical at least partially, and furthermore having a center portion immersed in a local raised center of a water body. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
