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Old 05-04-2019, 02:55   #46
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Boat: Custom Swedish Vindö 50 (35 ft)
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Re: How did you mount your depth finder transducer?

Quote:
Originally Posted by stnick View Post
Take the boat Out of the water have the local electronics guy mount a transducer on the bottom of the hull outside !
Stop this easy way inside stuff and just get propper depth informaton by a forward mounted transducer.
I know that not what you wanted to hear ! Its BOATS !!!!!!
Some of us prefer to have as few holes in the hull as possible. I went to the trouble of removing the two original working depth sounders and their transducers, glassed over the two transducer holes and then installed new depth sounders with shoot-through transducers.
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Old 05-04-2019, 06:59   #47
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Re: How did you mount your depth finder transducer?

I built up a flat spot on the inside of the hull with epoxy and then siliconed the transducer to that. works great.
Ted.
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Old 06-04-2019, 10:10   #48
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Re: How did you mount your depth finder transducer?

Here’s mine
PVC pipe. Siliconed in place. Brass cover. Drilled around edge to facilitate removal. Transducer has a 3/4” thick spacer under to make sure face is submerged. 1/16” pipe barb with stopcock to refill chamber. I use water here in south Florida.
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Old 12-04-2019, 18:15   #49
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Re: How did you mount your depth finder transducer?

We have an inside transducer. It is in a bath of something, oil or antifreeze?? But the point is we get phenomenal depth readings. It gives up at around 400 or 500 metres. (Off Vava'U in north Tonga.)
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Old 12-04-2019, 19:07   #50
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Re: How did you mount your depth finder transducer?

Absolute depth ability is of little importance where I sail. I don't care if it is 100 or 500 feet deep. I have to go 50 miles offshore to get to the 20 fathom line. However, the difference between 3.8 and 4.0 feet of water is important. Shooting thru the hull does not seem to be adversely affected at the skinny end of the scale.
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Old 13-04-2019, 04:22   #51
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Re: How did you mount your depth finder transducer?

A transducer that is inside and tells you ,you have to use liquid in a clear poly bubble, Just is not TRUE
I have mounted the transducer to the inside with silicone right to the hull, and I filled the poly bubble with Regular sealing silicone , no air left inside .
Nothing to leak ever.
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Old 13-04-2019, 06:07   #52
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Re: How did you mount your depth finder transducer?

you can mount any transducer in hull just ass your old transducer is mounted. You just need to get a some PVC pipe cut to the correct angle and epoxy it to the hull. Fill it with mineral oil and place the transducer inside and seal it with a screw cap or glued on cap.....as long as there is no air between the transducer face and the hull (eliminated by the oil) the beam will penetrate the hull and measure the depth. There might be more attenuation of the signal but it will work. I had a 30 foot O'day with that same old depth sounder and my new transducer didn't fit the through hull cutout so I simply epoxied it to the inside of the hull. I made a reservoir with some plumbers putty, filled it with epoxy, placed the transducer into the epoxy making sure there were no air bubbles and let it cure. Worked like a champ!
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