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Go Back   SailNet Community > General Interest > General Discussion (sailing related) > thru hulls - scared - need help
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Topic Review (Newest First)
09-06-2013 11:19 AM
blutoyz
Re: thru hulls - scared - need help

I mounted mine in a blob of silicone caulk and it reads just fine.
09-05-2013 02:03 PM
copacabana
Re: thru hulls - scared - need help

Quote:
Originally Posted by CarbonSink62 View Post
I have heard that peanut butter works as a temporary medium when you are trying to find a good location.

I hadn't heard of the oil trick.

Isn't there special 'transducer goop' made for semi-permanent installation?
Common hardware store silicone sealant is fine. You can remove it if you ever change your mind. The PVC pipe filled with liquid is another solution, but more work and perhaps not as trouble-free as simple silicone. Just remember when you're testing the spot on your hull that there can be no air bubbles under the transducer, which is why I suggest the "pool" made with modelling clay. If it works ok, just remove the clay and clean the surface well and mount the transducer in a gob of silicone. It's a 30 minute job.
09-05-2013 01:44 PM
bratzcpa
Re: thru hulls - scared - need help

I mounted my transducer inside the hull using "plumbers putty" (solid hull, about 3/8" or 1/2" thick or so). It's been there for two years now. Works perfectly. Hasn't moved a bit. I like that this is NOT permanent, so would be easy to change locations. or change transducers if I upgrade to a better unit someday.

This was actually (the only) boat upgrade that I've done that was easier and less costly AND faster than I was expecting!!! lol

~markb
09-05-2013 01:32 PM
CarbonSink62
Re: thru hulls - scared - need help

I have heard that peanut butter works as a temporary medium when you are trying to find a good location.

I hadn't heard of the oil trick.

Isn't there special 'transducer goop' made for semi-permanent installation?
09-05-2013 10:26 AM
arf145
Re: thru hulls - scared - need help

I bet a shoot thru transducer will work in your situation. It would be easy to check it out by temporarily mounting the transducer in some toilet seating wax and seeing what you can see.
09-05-2013 10:15 AM
MikeOReilly
Re: thru hulls - scared - need help

Quote:
Originally Posted by zeehag View Post
i am not aguy but i will take the thanks---make the well deep and only cover the transducer end so it doesnt come dry in a case of extreme heel....
have fun--it does work.

i used a piece of pvc pipe glued to hull interior and filled with about 2 inches of oil---cooking oil--extra virgin olive variety...it wont come out unless i knock down.
If all you're looking for is depth, then I fully agree with Zee. Shoot-thru is fine, as long as your hull is solid. I ran for years on my previous boat with a transducer stuck to the inside hull inside a well (like your PVC pipe Zee), covered in water and held in place by a sponge. Kinda half-ass installation I know, but it worked flawlessly for the 8 years I sailed that boat.
09-05-2013 10:08 AM
zeehag
Re: thru hulls - scared - need help

i am not aguy but i will take the thanks---make the well deep and only cover the transducer end so it doesnt come dry in a case of extreme heel....
have fun--it does work.

i used a piece of pvc pipe glued to hull interior and filled with about 2 inches of oil---cooking oil--extra virgin olive variety...it wont come out unless i knock down.



omg you got help from a female...omg run fast--rodlmao
09-05-2013 09:51 AM
boknows
Re: thru hulls - scared - need help

Great info guys. This place is such a good resource. I will try it before I drill. I was nervous so that means I have good instincts or good end stinks. lol Thanks
09-05-2013 08:35 AM
zeehag
Re: thru hulls - scared - need help

my garmin transducer reads nicely thru my 2 inch thick hull when planted in a well of oil. try ti you will like it. no need to make holes in boat hull just for a transducer.

i have 2 depth sounders--one forward and one aft..aft is thru hull fitted, and forward is set into oil well..works perfect and is accurate.
09-05-2013 07:05 AM
copacabana
Re: thru hulls - scared - need help

What transducer does the chartplotter/fishfinder come with? Is it the kind that is meant to be mounted on the transom of a small boat? If yes, you should be able to mount it inside the hull and it will read through your hull (providing it isn't a cored hull). You can do a simple test by getting some children's modelling clay (plasticine) and making a little "pool" in the location you want to install the transducer. Fill the pool with water and let the transducer sit in the water. If you get a good signal, you're ready to install it permanently. If you don't get a signal, first make sure the transducer is angled to shoot straight down (and not angled to shoot off to the side) or try another location in the hull. Once you find a good location, it's simply a matter of cleaning and drying the spot and fixing the transducer in place with a big gob of silicone sealant. Be sure there are no bubbles in the silicone. If, for whatever reason, you want to move or remove the transducer, it is easy to cut it out of the silicone with an razor knife. You may find you installed it in a place that has some turbulence when underway and thus doesn't give you a good signal. If so, move it to another place. Ahead of the keel should be fine. Post a pic of the transducer if you can.
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