Um.... I lost my waterline.....

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1974_Venture_24

Well my sweet Esperanza is nearing the end of her complete overhaul.... However after all of this I seem to have lost my waterline measurements! How important is a waterline anyway? Do I really need to mess with is Or should I try and get the measurments? Opinions?
 

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Steve Paul

Your boat will sink

Without a proper water line your boat will sink and you'll be listed on boat offenders.com. No really, you don't need a water line it's just an old method of making the boat look longer. The real use for a water line is load management and float management. By using the visual of the water line you can quickly tell if the boat is taking on water or overloaded. Looks like you've got the water line in the attached photo already archived for you. I see two ways to get it back. Enlarage your photo and count the chain links from the timber to the water line, then turn this into inches and redraw your line. You can also float the boat as you use it and make some measurements fore and aft then replace the line. You might be able to mark the hull when the water is calm and replace the line that way when you're back on the trailer. There are several ways to get that line straight, google replacing the water line and read them. You can use a water line level, or a flying laser level to easily get it straight. Good luck and nice paint job. Steve P.
 
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Steve Paul

You were lucky

My thinking only happens once per year and you got lucky. Last week was it :) Steve P.
 
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Steve Paul

Wow

Doug, great idea and costs almost nothing to try. I like it. Steve P.
 
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Steve Paul

Just a thought

hey, find a calm place with a dock finger if you can. You won't be able to do this from inside the boat. When you lean over to sprinkle or mark you'll screw up your waterline.
 

Doug J

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May 2, 2005
1,192
Hunter 26 Oceanside, CA
Water mark

I haven't gone to Catalina Island yet, but I understand that while on a mooring there, they put some kind of yellow dye in your holding tank. That way if you illegally dump your holding tank the yellow dye will stain the side of your boat, indicating you dumped, and you'll get a hefty fine. I assume they probably do this all over. I don't know what they use, but I assume it can be cleaned off. I was thinking about the chalk. It might work if you could very carefully get the boat back on the trailer without disturbing too much the line it made. But maybe something that has a little more staining, yet washable property would work better. Not sure what that would be. I don't know what it is they put in the holding tanks. But maybe with a little research, that could be determined.
 
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Steve Paul

Flouroscene

Probably flouroscene is used. It really is green or greenish yellow and just a drop will color lots of water. If it's flouroscene it also flouresces under UV light. Anyway, why not go swimming around the boat in a very calm area, use a grease pencil as often as possible and average your dots or lines over each side. Using a wide stripe should take care of any small differences. Do get the boat level and use a hose level, laser or very long string to get it straight. Those curved hull lines will fool you when trying to place the waterline. Know anyone who'll let you float it in their pool/ Steve
 
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