Most boats have a spot in the hull that is nothing but glass. Some paint
this area black so you can find it. Others leave it clear and it will show
up as a clearer area.

To make sure it will work at this spot - fill the bilge with enough water to
cover the area by about 1/4". Lay the transducer on this spot and check.

The transducer will not work thru any air pockets so you have to put some
water in there to try.

To install - I use silicone. People will tell you not to but I have always
done this with no problem. Build up a large area of silicone about 1/2"
thick. Take the transducer and push it down all the way pushing out all the
excess. Don't twist. This will remove any air bubbles. Take and wipe up
the excess w/ papertowels being careful not to move the transducer.

Problem w/ epoxy is you need a lot to push down and make sure there are no
air bubbles.

--
Tony
my boats and cars at http://t.thomas.home.mchsi.com

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"gudmundur" wrote in message
...
Hi folks, Just bought a Faria dash mounted depth sounder with a
'glue it inside the hull' transducer. Faria warns that it won't work
very good if my hull has core material in it. I am guessing it probably
has 3/4 inch plywood with the outer, and inner fiberglass body shell.

I only need to know when the water is perhaps less than 8 feet deep.
As long as it is deeper I have no worries.

What are the chances it will work o.k. out to perhaps 20 feet if I just
go ahead and glue it in anyway? I really don't want to remove the inner
fiberglass shell, and the wooden core, just to glue the transducer on
the inside of the outer skin.

Anyone currently running a half baked set up like I am going to try?
Do I have to just bite the bullet, and get out the Dremel?

Thanks all!