Hey BK, I have watched you once or twice forget about your scuppers and get a half full ski. Jarrod wants a one way valve not two way. Yes the scuppers are wonderful for getting the water out quick. But they also do a nice job of filling back up if you don't attend to them. This will be a back up for the electric bilges. Hopefully will plumb a drain in his ski this weekend so he can finish his refoam project.