"Marley" wrote in message
...

Believe it or not, MANY surveyors frequently have no clue that this is
the case.


At a seminarduring our local boat show, the speaker, who is president of an
international surveyors association, said the moisture meter is probably the
last thing he uses during a survey.

Think about it... unless the hull has been out of the water for some time,
it's probably wet when pulled during the survey! I agree, these things are
very inexact and more art than science. I did have significant blistering on
my hull... did the whole peel and dry with hotvac thing. We took LOTS of
meter readings with different meters in the same place, even oven dried core
samples, etc. Meter readings should only be used to measure relative
differences, as none that I could tell gave an absolute measurement. Also
any metal in the hull or nearby makes the readings go high.

--


Keith
__
The only difference between a rut and a grave is the depth.
"Don White" wrote in message
...

"Marley" wrote in message
...

Believe it or not, MANY surveyors frequently have no clue that this is
the case.


At a seminarduring our local boat show, the speaker, who is president of
an
international surveyors association, said the moisture meter is probably
the
last thing he uses during a survey.

Keith wrote:
Meter readings should only be used to measure relative
differences,
Absolutely, what's the controversy in this thread? (not that you're
creating it) Meters do what they purport to do, and as long as one
recognizes that it is a qualitative, relative measurement i.e. comparing
moisture presence in a portion of the hull high above the water line to
sections below -with the anti-fouling removed first of course- the
values given do provide useful information IF it's interpreted correctly.

One has to remember that a meter only measures *surface* moisture

In article , prodigal1
wrote:

Keith wrote:
Meter readings should only be used to measure relative
differences,
Absolutely, what's the controversy in this thread? (not that you're
creating it) Meters do what they purport to do, and as long as one
recognizes that it is a qualitative, relative measurement i.e. comparing
moisture presence in a portion of the hull high above the water line to
sections below -with the anti-fouling removed first of course- the
values given do provide useful information IF it's interpreted correctly.