A "shoot thru" transducer needs to be installed at a point where the other side of the hull sees water. Is there a point inside the hull where the transducer will not be "shooting thru" the water ballast tank?
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John Baumgartner
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Henry Scurlock
Under the aft berth
I positioned the transducer in the 'compartment' on centerline under the aft berth. It is behind the ballast tank and offers a clear shot thru the hull.
I positioned the transducer in the 'compartment' on centerline under the aft berth. It is behind the ballast tank and offers a clear shot thru the hull.
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Alan Long
I agree
I'm not sure how much the 19 differs from the 23.5. My "shoot through" transducer is aft of the ballast tank slightly to starboard of the centerline. Works great. Make sure you mount it in epoxy. I tried silicone but couldn't get it to work, even though some people in the forum have had success with silicone. Another "old salt" trick for locating you transducer is to put it in a baggy full of water...then try different locations in the boat to find the one that works best. Alan Long S/V Random Access (94 23.5)
I'm not sure how much the 19 differs from the 23.5. My "shoot through" transducer is aft of the ballast tank slightly to starboard of the centerline. Works great. Make sure you mount it in epoxy. I tried silicone but couldn't get it to work, even though some people in the forum have had success with silicone. Another "old salt" trick for locating you transducer is to put it in a baggy full of water...then try different locations in the boat to find the one that works best. Alan Long S/V Random Access (94 23.5)
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Jon Bastien / H25 'Adagio'
An addition to Alan's post...
...About using a baggie full of water to 'test fire' locations for mounting the transducer. It's a good idea to wet the outside surface of the baggie, to prevent air bubbles between the baggie and the hull surface. I can vouch for this method of testing the transducer- I've been using it with my fishfinder for the last year and a half! Mounting it to the hull permanently is pretty far down on my 'to-do' list... I also recommend turning off the depth sounder before moving the baggie around- Most manufacturers' warn against turning on the sounder when the boat is out of the water. --Jon
...About using a baggie full of water to 'test fire' locations for mounting the transducer. It's a good idea to wet the outside surface of the baggie, to prevent air bubbles between the baggie and the hull surface. I can vouch for this method of testing the transducer- I've been using it with my fishfinder for the last year and a half! Mounting it to the hull permanently is pretty far down on my 'to-do' list... I also recommend turning off the depth sounder before moving the baggie around- Most manufacturers' warn against turning on the sounder when the boat is out of the water. --Jon
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Mike Pajewski
Aft of the ballast tank
We installed our fishfinder transducer under the aft berth with clear silicon RTV. Make sure the hull is clean of any molding residue. I used alchohol to clean the surface and installed it with the boat on the trailer so their would be no condensation. If you haven't purchased your depth instrument yet, consider a GPS fishfinder. It gives you depth, bottom contours and hardness and if you want to fish, you can find them too. The GPS is also usefull, and it didn't cost much more than some sailboat depth instruments. Mike Pajewski H26 "Loon"
We installed our fishfinder transducer under the aft berth with clear silicon RTV. Make sure the hull is clean of any molding residue. I used alchohol to clean the surface and installed it with the boat on the trailer so their would be no condensation. If you haven't purchased your depth instrument yet, consider a GPS fishfinder. It gives you depth, bottom contours and hardness and if you want to fish, you can find them too. The GPS is also usefull, and it didn't cost much more than some sailboat depth instruments. Mike Pajewski H26 "Loon"
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Dick
Doesn't make sense to me?
Why would you place a depth sounder transducer in the stern? Do you want to know how shallow the water is when you are already hung up? I had to replace a transducer in an old Spirit 23 last year. The old one had been up in the bow under the V birth. It even looks slightly forward. Wasn't hard. Just followed the instructions for making a dike out of calk and filling it with epoxy. Worked great. Can't a line be run up to the bow?
Why would you place a depth sounder transducer in the stern? Do you want to know how shallow the water is when you are already hung up? I had to replace a transducer in an old Spirit 23 last year. The old one had been up in the bow under the V birth. It even looks slightly forward. Wasn't hard. Just followed the instructions for making a dike out of calk and filling it with epoxy. Worked great. Can't a line be run up to the bow?
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Jeff Powers
Transducer in the stern
Dick, of course you are right. I did install the "shoot thru" (actually purchased as a "transom mount" in the bow, in a dike of caulk, and it works fine. Thanks
Dick, of course you are right. I did install the "shoot thru" (actually purchased as a "transom mount" in the bow, in a dike of caulk, and it works fine. Thanks
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Jeff Powers
Transducer Mount Experience
John of High Pt NC. I used the advice received from good sailors on this forum. With baggie of water and peanut butter found a point (apparently forward of the ballast tank) in the forward most storage compartment where the transducer produced accurate depth. I then puddled some "Life Caulk) recommended by BoatUS and pushed the "transom mount" transducer into it. I appreciate all the good responses and am now an expert.
John of High Pt NC. I used the advice received from good sailors on this forum. With baggie of water and peanut butter found a point (apparently forward of the ballast tank) in the forward most storage compartment where the transducer produced accurate depth. I then puddled some "Life Caulk) recommended by BoatUS and pushed the "transom mount" transducer into it. I appreciate all the good responses and am now an expert.
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