Geograph - photograph every grid square

Is the discharge in SP4658 : Marston Doles-Oxford Canal from the sewage pumping station in SP4658 : Marston Doles booster sewage pumping station?

Originally it would have been from the pump house at the end of the Engine House Arm SP4659 : Sheds near Oxford Canal feeder (2). (This arm is incorrectly labelled as a 'canal feeder' by OS). This old pump took water from the bottom of the lock flight at SP45796083. The subsequent course of the pump supply channel may be traced with fair certainty as SP45986080, 45996064, 45906029, 46126004, 46435992, (hereabouts it goes underground), 46395981, 46565913 (pump house), discharge channel: 46675906, 46705897, 47025885, 46955849, 46795843 (possibly), 46815836 (possibly), current sewage pumping station (possibly) to top lock. The last bit may have been more direct, bypassing the current pumping station.