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Old 08-28-2016, 04:43 PM   #21
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If a future owner wants a through hull and seacock for a new system, it is pretty simply to install the fittings you want where they are needed. For me I would glass over the hole. as far as "dishing it out" For that type of repair a 10:1 scarf ratio is the goal. If the glass is half an inch thick you taper the laminate 5 inches out. It is best to do the repair from the outside, and much cleaner as well. grind away the glass until the periphery of the old hole is a knife edge and taper it out to 5 inches all the way around then build up with multiple layers of class. Vinyl-ester resin is a polyester with adhesion equal to epoxy and it is easier to work with. It has much better resistance to moisture than standard laminating resin. I have done it many times in my boatyard.
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Old 08-28-2016, 06:49 PM   #22
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Re-bed them, don't re-bed them, just move on.

IMO, going to all the trouble to pull them out and fill the holes for no real reason is a waste of time and money.

Leave something for the next owner to lose sleep needlessly over for crying out loud.
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Old 08-28-2016, 07:00 PM   #23
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Originally Posted by Capt.Bill11 View Post
Re-bed them, don't re-bed them, just move on.

IMO, going to all the trouble to pull them out and fill the holes for no real reason is a waste of time and money.

Leave something for the next owner to lose sleep needlessly over for crying out loud.
Thanks , I didn't mean for this to turn into such a big deal . I'm just gonna leave them in like they are with the valves plugged .
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Old 08-28-2016, 07:54 PM   #24
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Thanks , I didn't mean for this to turn into such a big deal .

This is Trawler Forum Marty, we make everything a big deal. Don't take my word for that though, right now we have a thread espousing the flipping rocket science that is Formica installation and another where grown men are arguing the difference between arcs and circles. Making a big deal about it is what we are best at.

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Old 08-28-2016, 11:16 PM   #25
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I'm in the "leave them in place camp" but I'd do it a little different.
First I'd make sure they were pretty short. The longer they are the more chance of them breaking off. It's a small chance but not zero.

I would then screw a bronze pipe cap on them. That should be enough, but because the pipe cap has tapered threads and the thru-hull has straight threads, I'd pack the thru-hull with epoxy putty. That way even if the cap is removed, it won't leak.

If at a later date someone needs a thru-hull, they can just replace it with a new one.
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Old 08-29-2016, 06:01 AM   #26
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"We would hope the yard doesn't need instructions on how to fill a hole in the hull. If it does, you need a different yard or an outside fiberglass contractor."

I have been at "quality" yards that would plug the hole with Bondo , and then glass it over.

Yards need watching , not instruction.
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