the pointy end is the bow
Join Date: Aug 2006
Location: La Conner, Washington
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Re: How can I identify the waterline from inside?
I would try a hand held infra red thermometer and shine it on the inside of the hull to see if can find the boundary between the water temperature and the air temperature.
1983 Fraser 41
La Conner, WA
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Boating for over 25 years, some of them successfully.