Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,987 pages of information and 232,838 images on early companies, their products and the people who designed and built them.
Three lines of sewers on the north side of the Thames converge and unite at Abbey Mills, where the contents of the low level line were pumped into the upper level, flowing onto the northern outfall sewer carried on a concrete embankment across the marshes to Barking Creek.
The engine house was "in the form of a cross, two engines being located in each arm side by side, the cylinders being all disposed centrally with the large air vessel on the mains within the group." The drawings from which the engravings were made were "courteously placed at The Engineer's disposal by Mr. Bazalgette.
Old photo of cast iron sewer pipes here.