My splashwell bulkhead was made with drainplug holes in it. I keep the plugs in unless the boat is out of water or underway. The back side of the splashwell goes under alot, but, doesn't give me any trouble as long as the plugs are in the front. I let the water from the deck run into the bilge and hit the bilge pump once in awhile to keep a check on it. So far, it has been manageable. Heading to the Outer Banks on the 18th for a week. I'll determine if I need to make any changes after that. Planning on going after some dolphin, weather permitting.