Most shower drains rely on a pump under the head sink. The drain line typically runs all the way aft and connects to the torpedo tube. Putting the pump anywhere else woulkd surely reduce it efficiency. Maybe tracing the line will help. The previous owner seems to have done some strange revisionsThe foot pump has also been disconnected, I will look at the line to that, it has a bypass connector in it, thanks. I still need to get another tee and hook up the open line, I think that is the cold water to the bathroom, head, as only the hot water runs there now. Another thing, there is a pump that runs when I switch on the shower drain. I thought it was the pump that is in the middle of the bathroom sink cabinet, but that one, whatever it is, is not even wired up. So there is yet another pump I have not found yet.