Patent ID: 6528467
Filing Date: 2003-03-04
Classification: A01N,C02F,E03C

Abstract:
A device for preventing/removing slime from the slime contaminated wall surfaces of a drain comprising:a solid containing a microorganism growth retarding substance and a container storing said solid, the container having a shape for permitting its installation at the top or upper part of an inlet pipe; and means for spreading a solid-dissolved solution over the slime contaminated wall surfaces commencing from the top or upper part of the inlet pipe and continuing to do so until depleted, said means including drainage flow-in holes having an opening degree capable of controlling the drainage flow-in amount, the drainage flow-in holes being provided in at least one of the upper surface and the upper side of the container, and said means including solution flow-out holes having an opening degree capable of controlling the flow-out amount of the solid-dissolved solution, the solution flow-out holes being provided in at least one of the bottom of the container, the lower side of the container, in the side of the container and combinations thereof.