WASTEWATER TREATMENT DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a technique that can reduce the space required for the arrangement of a structure for transferring a liquid and confirming the transfer amount.SOLUTION: A transfer pipe is used, the transfer pipe having a pipe, a flange fixed to the pipe, a screw part formed on the outer peripheral surface of the pipe, and a reference part showing a reference of the height of a liquid level relative to the liquid surface.