Moisture delam at through hulls - SailNet Community
 
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post #1 of 7 Old 05-10-2011 Thread Starter
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Moisture delam at through hulls

I just had a survey done on a Bristol 32. There is moisture around the cluster of through hulls related to the head. Has anyone had this issue? This boat never had a holding tank installed and instead uses a portable toilet so two of the three penetrations are not used.

I'm trying to learn what the repair cost for this might be before I respond to the seller. I'm of course checking with local yards today to get estimates. Has anyone had to deal with this and if so what did you do and what did that cost?

I doubt these were ever rebedded in all these years.

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Jim
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post #2 of 7 Old 05-10-2011
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What advice did the surveyor have? Did he say there is actual delamination, versus just moisture?

As this is a solid glass hull, I would suspect that any moisture around those fittings may likely reflect puddling on the inside, resulting in moisture absorption. Are there any low spots on the inside? If so, just keeping them dry and letting the hull dry may resolve the situation. If there is actually delamination, then the area needs to be cut back and reglassed.

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post #3 of 7 Old 05-10-2011 Thread Starter
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I haven't seen the official survey yet, but there was no puddling inside. There was the nice crisp tap around the outside of this cluster of through hull and the low thud inside the cluster. The hull seemed to deflect a little too. The boat is in the water and of course the through hulls are below the water line and under the sink cabinet in the head. It was dry in there.

I've called around Seattle today and so far got two estimates. One about $1000.00 and the other about $3000.00. It is hard when they can't see the actual job. I'm still getting opinions.

Jim
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post #4 of 7 Old 05-14-2011
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Quote:
Originally Posted by jb1528 View Post
I just had a survey done on a Bristol 32. There is moisture around the cluster of through hulls related to the head. Has anyone had this issue? This boat never had a holding tank installed and instead uses a portable toilet so two of the three penetrations are not used.

I'm trying to learn what the repair cost for this might be before I respond to the seller. I'm of course checking with local yards today to get estimates. Has anyone had to deal with this and if so what did you do and what did that cost?

I doubt these were ever rebedded in all these years.

Thanks

Jim
That may be why the PO used a portable toilet. I would guess the area was damaged at some point and poorly repaired. Since the chainplates attach in this same area how far up does the delamination go?

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post #5 of 7 Old 06-15-2011 Thread Starter
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I suspect that the portable toilet option was chosen because there was no holding tank installed on this boat. It all went over the side. It was the cheap easy route I suspect.

The thud seemed localized around the through hulls. It didn't go beyond that.

I don't have any moisture intrusion on the inside there.
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post #6 of 7 Old 06-25-2012 Thread Starter
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Re: Moisture delam at through hulls

Well in the event anyone cares to know, what I thought was delamination, was a change in accoustic properties brought on by a wooden backing plate to a seacock. No delamination. I did have the two holes glassed over. The hull was solid.

Jim
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post #7 of 7 Old 06-25-2012
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Re: Moisture delam at through hulls

Good to know, thanks for the follow-up, jb.

Ron

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