Want to get an electronic depth meter but not a through hull type! That leaves transom mount, or in-hull types. Am considering the in-hull type, but how good do they work? I have heard a few stories that they are not as accurate, due to being inside the hull? Most people I know have through hull, but dont want to go that way! thanks for any info
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Bill
No need to go thru hull
Three years ago, I bought the least expensive fish finder off the shelf at WM, and stuck the transponder on the inside of the hull, using chewing gum. This was at first intended to be aan experiment to test the unit, but is still working.
Three years ago, I bought the least expensive fish finder off the shelf at WM, and stuck the transponder on the inside of the hull, using chewing gum. This was at first intended to be aan experiment to test the unit, but is still working.
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William
I agree with Bill
I have a Mac 25 and did the same thing as Bill (well minus the chewing gum). I picked up a cheap fish finder and mounted it. I mounted the transducer in the hull but of course the speed sensor is mounted on the transom. It works very well.I would try the inside the hull mount first..if you find it doesn't work you can always mount it on the transom.
I have a Mac 25 and did the same thing as Bill (well minus the chewing gum). I picked up a cheap fish finder and mounted it. I mounted the transducer in the hull but of course the speed sensor is mounted on the transom. It works very well.I would try the inside the hull mount first..if you find it doesn't work you can always mount it on the transom.
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ScurvyDog
My Humminbird still works
I mounted a Humminbird fish finder two years ago with the transducer shooting though haul. It works just fine, saw depths of past 400 feet reading in Georgian bay. As a test I stuck it to the haul with peanut butter (smooth, not chunky)to check the location. I intended to then epoxy it when happy with the location, it is still stuck with peanut butter!
I mounted a Humminbird fish finder two years ago with the transducer shooting though haul. It works just fine, saw depths of past 400 feet reading in Georgian bay. As a test I stuck it to the haul with peanut butter (smooth, not chunky)to check the location. I intended to then epoxy it when happy with the location, it is still stuck with peanut butter!
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Tim Welsh
Hummingbird
I have a hummingbird also. I mounted my transducer with silicone and it works just fine. Haven't run aground yet. Knock on wood. Tim Welsh H34 AKA Cabo Wabo.
I have a hummingbird also. I mounted my transducer with silicone and it works just fine. Haven't run aground yet. Knock on wood. Tim Welsh H34 AKA Cabo Wabo.
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Bill
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Tom s/v GAIA
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Ric
soild or core
I installed a shoot thru the hull and it worked fine. I understand that if you have a cored hull, it doesn't work as well. Mine has a "cup" that you epoxy to the hull and fill with oil, then has a cap (does not leak). This makes it most accurate. I used water system antifreeze instead of oil. That way, if there is a spill, no mess to clean up.
I installed a shoot thru the hull and it worked fine. I understand that if you have a cored hull, it doesn't work as well. Mine has a "cup" that you epoxy to the hull and fill with oil, then has a cap (does not leak). This makes it most accurate. I used water system antifreeze instead of oil. That way, if there is a spill, no mess to clean up.
Just about anything will work
Oil, water, peanut butter, silicone, epoxy... you name it. Just about anything will do as long as it has a good acoustic coupling to the hull. That means NO air between the face of the transducer and the inside of the hull. The best place to locate the transducer is near the centerline of the hull forward of the keel. You can try different locations by placing the transducer face down on a sealed plastic bag of water (Ziploc is perfect) then move the bag around on the inside of the hull until you get a nice clear signal. Once you have a good location, fasten the transducer to the hull using your favorite method. Good luck. Peter H23 "Raven"
Oil, water, peanut butter, silicone, epoxy... you name it. Just about anything will do as long as it has a good acoustic coupling to the hull. That means NO air between the face of the transducer and the inside of the hull. The best place to locate the transducer is near the centerline of the hull forward of the keel. You can try different locations by placing the transducer face down on a sealed plastic bag of water (Ziploc is perfect) then move the bag around on the inside of the hull until you get a nice clear signal. Once you have a good location, fasten the transducer to the hull using your favorite method. Good luck. Peter H23 "Raven"
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Dennis
Thanks for the info on depth sounders!
Im just not to sure about using peanut butter? Gum maybe, but not peanut butter! thanks again
Im just not to sure about using peanut butter? Gum maybe, but not peanut butter! thanks again
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Ted
10 year old hummingbird from WM
that's Walmart, not you know who. Transom mount on 45MPH runabout, always worked good, accurate, trouble free, cheap and a good picture but for avoiding shoals, sandbars & such it's on the wrong end of the boat !
that's Walmart, not you know who. Transom mount on 45MPH runabout, always worked good, accurate, trouble free, cheap and a good picture but for avoiding shoals, sandbars & such it's on the wrong end of the boat !
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Andy
wax-ring
I installed a cheap transducer, in the hull, using half of the wax-ring from a toilet boot/ seal( $1 at the hardware store) It's plyable, free of smells and provides a durable, air-free but removable bond. Andy (Cat 22)
I installed a cheap transducer, in the hull, using half of the wax-ring from a toilet boot/ seal( $1 at the hardware store) It's plyable, free of smells and provides a durable, air-free but removable bond. Andy (Cat 22)
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Bob Camarena
Ditto on the wax ring
I installed my finder about 5 years ago using the wax ring method as a temporary fix while I decided where to mount it permanently. I haven't found any need to do anything else, so it's still there working fine.
I installed my finder about 5 years ago using the wax ring method as a temporary fix while I decided where to mount it permanently. I haven't found any need to do anything else, so it's still there working fine.
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ScurvyDog
Bill, Know forest well
Hi bill, I know forest well. I grew up in Sarnia. If I remember correctly, I even dated a girl from forest. Lots of farmers!
Hi bill, I know forest well. I grew up in Sarnia. If I remember correctly, I even dated a girl from forest. Lots of farmers!
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