| 摘要 |
PROBLEM TO BE SOLVED: To provide a Y-type pipeline strainer for easily removing fine floating dust and a rainwater utilization system where it is arranged in a system for utilizing rainwater for washing a toilet. SOLUTION: The Y-type pipeline strainer is in structure where it has five to ten times larger filtering area than compact filtering equipment being provided at the float valve of a conventional toilet low tank, eliminates the need for an exclusive tool, and is in a manually rotary, detachable screw lid type. The rainwater utilization system is in structure where maintenance space has been secured fully in a system for utilizing rainwater for toilet drainage and the Y-type pipeline strainer is arranged in the middle of piping from a rainwater storage tank to the toilet.
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