Hi- We are having a problem setting up our transducer. We have all wires run for power, and the transducer wire is run to the unit as well. The transducer reads perfectly through the hull in a baggie filled with water. When we try to make a permanent installation, it reads 1.7 feet. (At low tide, there is at least 7 feet under the boat.) We have used Marine-Tex- no go. Moved location, still no go. Tried Polyseamseal, also no go. We are making sure that it is level, and that there are no bubbles in what we put it in. We can't figure out why it reads through the bag of water, but not through any material. The hull is solid fiberglass. No matter what we try, we're back to "But it reads through the bag of water!" Any ideas? Directions say to use a non-silicone based epoxy. What would that be? We have read the ingredients of everything we have, and we are not able to determine what is, or is not silicone-based. Found a previous post recommending silicone caulk. Surely that is silicone-based?! Help! TIA Bob and Vicki Schuerger "Blue Moon" GB42-1009 currently finally in the water, and in Miami Beach!

gb421009@earthlink.net writes: >Found a previous post recommending silicone caulk. Surely that is >silicone-based?! That could have been I. About three years ago, I installed a new transducer on the inside of a only slightly curved part of the hull at a point where it's about 1 to 2 feet below the waterline. Used something called 'GE Silicone II'. It's a white sticky goo in a 100g tube. No connection to GE, just happened to see that stuff -- for a good price -- at a marine flea-market. Bought about a dozen tubes and use it for everything that needs sticking or caulking. The depth sounder works fine, but expectedly reads about one foot less than actual waterdepth. I can handle the math for that.... :-) George of Scaramouche1, Frenchman's Bay, Ontario P.s: An earlier "mistress" of mine had the same kind of depth sounder installed (inside) using the container and mineral oil method. Worked equally well. Came with the boat, so I don't know how long it has been there. Gg

>P.s: An earlier "mistress" of mine had the same kind of depth sounder >installed (inside) using the container and mineral oil method. Worked >equally well. Came with the boat, so I don't know how long it has >been there. Gg ===================================================== Even with a depth finder she could'nt find it George..... . Captain Al Pilvinis "M/V Driftwood"--Prairie 47 2630 N.E. 41st Street Lighthouse Point, Fl 33064-8064 Voice 954-941-2556 Fax 954 788-2666 Email yourcaptain@earthlink.net Website http://home.earthlink.net/~yourcaptain