Bury Interchange Toilet

When I first arrived I found I needed to put 20p in a machine, not much help if desperate and have no change, then the barrier was rather odd to make sense of, initially the place seemed clean in the general area, but as soon as I went into the gents the usual smell hit me, I am not sure if its poor maintainance or bad cleaning, or maybe they are trying to save water on the flushing, everything seemd to work, but walls were not that clean