Bilge Water Siphoned Through Water-Jacket Outlet
The Small Pipe Fixed to the Water-Jacket Outlet Siphons the Bilge Water from the Bottom of the Motorboat
The sketch shows a simple method of removing the bilge water from a motorboat automatically while the engine is in operation. A small pipe is fitted into the outlet from the water jacket, as shown at A, and extended to the bottom of the boat where the bilge water accumulates. A sack is fixed over the end of the pipe to prevent particles of dirt from entering the pipe. The water passing out of the water-jacket outlet causes a siphoning action in the small pipe, and the bilge water is drawn up and passes out of the larger outlet. At the left, in dotted outline, is shown a method of removing the bilge water by permitting it to be drawn up into the pump which supplies the water to the water-jacket. This method is sometimes used, but is satisfactory only when the bilge water can be kept clean, which is difficult.—Francis B. Dashiell, Baltimore, Md.