It’s important to inspect and exercise your thru hull valves monthly. If you observe leaks, excessive green corrosion or if the shut-off handle is frozen and will not move, the thru hull, doubler mounting block and valve should be replaced. The excessive green corrosion and/or underlying pinkish color of the bronze metal is a likely sign of electrolysis damage that weakens and makes the metal brittle.
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Properly operating thru hull valves are one of the most important safety features of your vessel. They serve as a safety defense in the event of a damaged hose, enabling incoming water to be shut-off immediately. Thru hulls and valves are located anywhere on your vessel at a hose connection, where water is coming in or exiting the hull below the waterline.
Thru Hull Services Available Servicing, replacement, installation, elimination, transducer installations
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