
01-28-2009
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Senior Member
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Join Date: Apr 2006
Posts: 7,087
Rep Power: 8
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For a boat's hot water heater, I'd expect that you'd need a special small size that had ot be ordered from the maker. You might want to order the new one, and then see if there's a bolt on the top of the tank that looks like the end of the pencil. Often they just screw into the top on domestic hot water tanks, and just look like "another bolt" until you take them out.
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