My 1990 22 seafarer shares an electric pump witht the livewell. There is a Y - Valve that must be manually turned to supply raw water. Hope that helps.
Your saltwater washdown pump probably also serves as a livewell pump. On my 92 24' Explorer, I believe the dash mounted switch was labeled "livewell." As NJ John said there is a three-way valve near the transom that diverts the salt water to either the livewell or the washdown. I think Grady did this to cut costs and it may have been an attempt to keep it simple.
