SEWAGE WATER DRAINING SYSTEM AND METHOD FOR CONNECTING THE SAME TO SEWER MAIN

摘要

PROBLEM TO BE SOLVED: To provide a sewage water draining system through which sewage water from drainage equipment is drained to storage means and which can efficiently change a sewage water drainage destination into a sewer main, and to provide a method for connecting the same to the sewer main.SOLUTION: A sewage water draining system 1A includes a sewage water basin 40 having a flow path changeover function for sewage water. The sewage water basin 40 includes a basin body 41 having an access port 51 opening upward, an inflow port 52 to which the downstream end of a first outflow pipeline 11 is connected, a first outflow port 53 to which the sewer main can be connected, and a second outflow port 54 to which storage means 70 is connected, and changeover means 42 provided on the basin body 41 for enabling a position change between a first changeover position where the inflow port 52 and the first outflow port 53 are communicated with each other to prevent the flow of the sewage water from the inflow port 52 to the second outflow port 54 and a second changeover position where the inflow port 52 and the second outflow port 54 are communicated with each other to prevent the flow of the sewage water from the inflow port 52 to the first outflow port 53.