He squeezed his eyes nearly shut, looking as if he'd just caught wind of an open sewer.
His sensitive nose was suddenly exposed to an open sewer.
It is now an open sewer rather than a stream.
There was an unpleasant smell in the room, as of an open sewer.
As he recalled there was an open sewer near here and it wouldn't do to fall in.
We're practically living over what is clearly an open sewer.
The old river bed then became an open sewer until the arrival of the British in 1878.
Such open sewers were replaced in the early 20th century.
Across the square ran the open sewer of the village.
At this time the beck was an open sewer and it remained so until the early part of the 20th century.