ZIRKULIERENDES ENTWÄSSERUNGSSYSTEM FÜR ABWASSERROHR-INSTALLATIONSARBEITEN

摘要

A sewage by-pass discharging apparatus for sewage pipe works comprises an upstream side stop cock disposed at an upstream side of a sewage pipe laid in a working area, a downstream side stop cock disposed at a downstream side of the sewage pipe laid in the working area, a member for discharging the sewage accumulated at an upstream side from the upstream side stop cock to a downstream side from the downstream side stop cock by bypassing the sewage pipe, a drain pipe connected to the sewage pipe laid in the working area, a drain pit connected to the drain pipe, a stop cock for preventing the sewage from flowing from the drain pit into the drain pipe, and a unit discharging the sewage reserved in the drain pit to downstream side from the downstream side stop cock. According to this structure, the working to the sewage pipe can be performed while the sewage system is maintained in a state of being utilized as usual by the residents of the respective homes.