Sewage system has an access shaft, with an opening into the sewage pipe, covered by a connection with a hose link to a filter to keep the shaft interior free of foul air

摘要

The sewage channel system has a sewage pipe (2) and at least one shaft (1), with an opening (4) into the pipe and a deodorant filter (8). The shaft opening into the sewage pipe is linked directly to the filter through a hose (18). The hose is fitted at the pipe opening by a shrouding connection (15), with an inserted take-off funnel (16).