I remember the deep sewer being placed under Goodrich Road, Heber Road it passed our school we watched as it turned across Lordship Lane into Townley Road, it must have been at least five foot diameter, and dug fifteen feet under the ground, and we could stand up, as we got into the end in the evening while the night watchman was not looking, we crept back as far as the bend in Crystal Palace Road but would not venture further in the dark, this must have been around 1940/1943. I dont think it was connected to the 7ft sewer in Townley Road, I have a vague memory of it passing the Dulwich Hospital. This Ruston Bycrus Drag Shovel type was ured to dig the trench.