I have a 1998 Proline 170 that I recently purchased. Everything is great on the boat except I can not figure out how to work the baitwells. There is a switch on the console but it does not seem to do anything. When I manually put water in the wells it just drains out the bottom plug. Do I need to manually plug these drain holes? Am I not waiting long enough after flipping the console switch for water to fill the units? <br /><br />Thanks in advance. 