Pipe transition

A short piece of 4" O.D. (outside diameter) ABS pipe fits the curb hole snugly. The transition to the 3/4" PVC (Polyvinyl Chloride) pipe was made with an ABS clean-out plug and threaded cap (all the black pieces in the photo are ABS, the white is PVC). A 3/4" hole was then drilled in the ABS cap for a snug fit with the PVC. Sleeves were cemented to lock the joint. After pushing the PVC pipe through under the sidewalk, the threaded connection created a tight assembly.