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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!

O.K. folks, It works like a champ! I had it in a local large
lake, and it was faultless down to 103 feet, the maximum lake depth.
It was accurate also, as I have been diving in this lake, and know
several points of depth reference. Don't know for sure if there is
a wooden core in the hull of my Four Winns Catalina, but if there is,
the transducer setup works fine. I did not use the deadriser or anything
special, just silicone RTV glued the transducer to the hull, and sat
a red brick on top to squish the glue.

Man, this will help me plan my dives in the lake much better now!
I know exactly where the sides of the channel are, at about 80 feet down.

Thanks all for thoughts and suggestions. Gummi.