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我们在普通快滤池的出水管上接一段“虹吸管”,出水通过虹吸管入清水库;冲洗水不通过该虹吸管而进入“百脚总管”进行反冲。这段虹吸管用钢板焊成。出水阀装在虹吸上升管上(或冲洗控制阀与虹吸上升管间)。虹吸破坏管装在虹吸管的顶端。而虹吸管顶一定要位于滤池滤料面以上0.1～0.2米(参见附图)。
We take a “siphon tube” on the outlet pipe of the ordinary fast filter tank, and the effluent passes through the siphon tube into the clear reservoir; the flushing water does not pass through the siphon tube and enters the “hundred-foot pipe” for recoil. This siphon was welded with steel plates. The outlet valve is mounted on the siphon riser (or between the flush control valve and the siphon riser). The siphon damage tube is mounted on the top of the siphon tube. The top of the siphon must be located 0.1 to 0.2 meters above the filter surface of the filter (see drawing).