Water in Ski Locker - Kamberra

[RickMcD]

Whenever the boat is at the dock during a heavy rain, the ski locker fills with 4 to 6 inches of water that won't drain. Shouldn't the ski locker drain into the bilge? At the "stern end - bottom" of the ski locker appears to be some type of plug (plastic or rubber). Should this plug be removed so water can drain down into the bilge? What is the purpose of this plug?

[DCM]

If you hold the rubber end of the plug you can screw the handle in or out. Whe you shorten the plug it will get fatter and fit better. Be carefull not to go to tight, makes it a real
B!#ch to get out.