I'll give an example of how I use the meter and why. When looking over a CS 27 I was interested in I got high readings around the port side chainplates. I figured it was either water in the core or the meter was reading the metal from the chainplates themselves or maybe the bulkhead. I checked the other side and it was ... dry. No reading. So, there are ways using some reasoning to get a fairly accurate idea of how wet a deck is. The thing is, that while false positives are possible, false negatives aren't really a concern. There is either a low reading, or a high reading. You don't get low readings if there is water (or metal) under what you have the meter on. You're not likely to reach the conclusion that a deck is dry when it is in fact soaked.
At the end of the day I recommend using a moisture meter to save yourself the cost of hiring a surveyor to tell you that the core is wet. I would walk away from any boat with a deck that needed re-coring, that's not a job I'm interested in and there are dry boats to be had on the market. The moisture meter isn't there to replace a surveyor, it's just there to save you the expense of paying some guy $500 to tell you what you could have figured out yourself with a $200 investment. Again, that $200 investment can be used to rule out or short list other boats PRIOR to paying for a survey. I would hate to hire a surveyor to have him come and take my $500 and then tell me "yup, the core is saturated". I'de walk away from that boat and the $500. Seems that $200 is good insurance for that scenario. Why guess? The surveyor I mentioned earlier that did my boat is one of only two SAMs accredited surveyors in this area (or so I was told by a third party) and he seemed VERY thorough. However, overall I'm not entirely sold on the whole experience and I'll add that my experience with the house surveyor that I hired when purchasing my house was the same. Underwhelming. Steve C&C 32 Toronto On Tue, Apr 9, 2013 at 10:24 AM, Knowles Rich <r...@sailpower.ca> wrote: > That sounds reasonable. Just hard to say whether any individual spot is > water or simply a void. Not trying to be difficult; I simply think we > should be cautious about measurements of the unseen. > > Rich Knowles > Indigo. LF38 > Halifax > > On 2013-04-09, at 11:18, Joel Aronson <joel.aron...@gmail.com> wrote: > > Rich, > The jump in reading indicated it was an area of concern. He tapped the > entire boat. If the tapping and the meter correlated, he felt it was an > issue. Fortunately, they were few and small. In the case of a high > reading at the babystay, the issue was caused by a missing bolt. > > Joel > 35/3 > The Office > Annapolis > > > On Tue, Apr 9, 2013 at 10:12 AM, Knowles Rich <r...@sailpower.ca> wrote: > >> To my point. Did the jump mean excessive/any water under the surface or >> simply an irregularity in the thickness or nature of the fiberglass or the >> presence of plywood etc. beneath the surface??? >> >> I guess what I'm trying to note is that I believe there is plenty of >> opportunity to make erroneous judgements of what is going on under the >> fibreglass sukin. I know that there are a couple of "hollow" sounding spots >> on my boat's deck which have been there for the 16 years I have owned her >> with no evident cause for alarm. >> >> Rich Knowles >> Indigo. LF38 >> Halifax >> >> On 2013-04-09, at 10:45, Joel Aronson <joel.aron...@gmail.com> wrote: >> >> > My surveyor used a Skipper moisture meter. It had an analog gauge. If >> it jumped, it indicated a potential problem. >> > >> > Joel >> > 35/3 >> > The Office >> > Annapolis >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com >> > > > > -- > Joel > 301 541 8551 > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > >
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