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Finding Water In Hull

Posted: Mon Mar 09, 2020 12:24 am
by garyyork
[Can the intrusion of] lots of water [into the interior foam of a Boston Whaler Unibond hull be detected by weighing the hull]?

BACKSTORY: I bought a well worn 1980 MONTAUK with a bad and weak repair to the forward part of the hull, perhaps done with putty. On my very first outing in rough water, a foot long split happened. Hundreds of gallons water went inside the hull. The water drained out the large crack when back on the trailer for 30-minutes.

[The boat damage] was an insurance claim from my insurance for total hull loss.

Boston Whaler said the hull cannot be repaired.

I had a gel coat repair guy do a wonderful repair and spent the next 12 years out in very rough water.

I asked the repairman if the hull will ever break open at his repair. He said, “NOPE not there.”

I put it to the test and it passed.

The repair was done by Ashland Wood Specialty in San Leandro, California.

Re: Finding Water In Hull

Posted: Mon Mar 09, 2020 7:57 am
by jimh
Questions about methods to detect water in Boston Whaler Unibond hulls are frequently asked. A comprehensive answer is found at

Q3: Is There Water In My Hull?

Http://continuouswave.com/whaler/reference/FAQ/#Q3

If Boston Whaler declared one of their hulls as “unrepairable”, and the hull was insured against total loss at an agreed value, I would not put myself at risk using that hull in the open ocean.