04-30-2022, 08:46 PM
Make sure you get a good marine sounding meter such as Electropysics. Generally a reading of 16 or less is considered acceptable. Thru hulls, deck fittings, air intakes, etc tend to be where moisture intrudes into the core. Also be aware moisture meters are not perfect. They don’t work well over bottom paint and objects behind the fiberglass such as hoses can throw off the readings. A good marine meter is not cheap either. A trusted surveyor may make more sense since they have the tools and know how to interpret the results. Good luck
