we have an 96 model lowes roughneck model 19 ft. with center console the live well is in front of center console. the problem= the inlet and over flow both feed out through the bottom of boat , the pump on the inflow prevents water from flowing into the live well until the pump is turned on, on the over flow it runs strait from the upper part of the live well to the bottom of the boat. when the boat moves it fills the live well up through the over flow, also the fellow who owned the boat before us welded up the drain hole in the bottom of the live well so there is no drain and if the plug isn`t in the over flow we end up with a full live well. my question is , will any live well pump fit in place of the other pump that dosen`t work now,and how to prevent unwanted water from coming into live well through the over flow, also once we get the live working how to drain it? any ideas?