It Keeps on Pumping
If you're looking for a way to make sure that the bilge of your dinghy is always being pumped dry without going to the expense or aggravation of rigging an electric-powered bilge pump or a boat cover, check this out: The Drainman from Lansman is a clever little bilge pump that's powered by using a dinghy's natural motion in wind and waves when it's tethered to a dock, a mooring pendant, or the stern of your boat. The Drainman connects to a dock line or a painter; every time the line goes tight, it pumps some water out of the bottom of the boat. Now this little pump won't keep up with a Biblical downpour, but as long as the boat moves enough to tension the line holding it, the pump will pump. The company says that the pump can move 660 gallons per day.