Fishfinder will not "shoot" through hull

[BigDog216]

Hey everybody........newbie and 1st poster here.
Got a little problem maybe you guys can shed a little light on.
I have a Perception Caster 12.5 and a Humminbird Piranhamax 190c FF.
I mounted the transducer inside the hull laying flat on the bottom of the kayak....didn't glue it down yet as this was a test run......FF displayed 0 depth and no picture on the screen the entire time.....took the tranducer out and dangled over the side and it works perfectly.....
any ideas?

thanks in advance for the help

[salty pirate]

did you have any water inside the hull? if the transducer has air under it won't work. try a search

[mtnbykr2]

there are a whole bunch of tecniques for transducers in innovations or just serch it in here, marine goop works best imo...

[BigDog216]

Nope! no water in the hull....excuse my stupidity.....didn't find this forum til after I went fishing....gonna use the Goop method....thanks

[salty pirate]

Originally Posted by BigDog216

Nope! no water in the hull....excuse my stupidity.....didn't find this forum til after I went fishing....gonna use the Goop method....thanks

be careful with the goop method if you get air bubbles in the goop you won't get a good pic. I saw someone posted transducer in a ziplock bag that has water in it. that might be a good way to test how shoot through hull works on your ff.
if temp is importent to you shoot through is not the way to go.

[mtnbykr2]

I have used the goop method 4 different times with no trouble, I like the
zip lock method too...

[sandydiego]

[QUOTE=
if temp is importent to you shoot through is not the way to go.[/QUOTE]

My FF temp is spot on with the wet mount. I'm sure it depends on how much water/contact the wet mount has.

[maui jim]

That will $145.00 for the BWE Information fee....
Tax is included of course...

We accept beer, fish in trade and always cash...

[mtnbykr2]

:luxh ello:

[salty pirate]

Originally Posted by sandydiego

My FF temp is spot on with the wet mount. I'm sure it depends on how much water/contact the wet mount has.

Your right the temp of the water that's inside the 5" pvc inside the hull of the kayak couldn't dif-fer from that of the surface temp.

[sandydiego]

Originally Posted by salty pirate

Your right the temp of the water that's inside the 5" pvc inside the hull of the kayak couldn't dif-fer from that of the surface temp.

The heat loss through the polyethylene hull is why it works. The PVC and cap just keep the water in place. We have compared it to a in the water mount and it read the same.

[sandydiego]

Originally Posted by BigDog216

Nope! no water in the hull....excuse my stupidity.....didn't find this forum til after I went fishing....gonna use the Goop method....thanks

I have used the goop mount and switched to the wet mount. The FF will be much more sensitive with a wet mount. I can watch my weight on my sabiki drop to the bottom and adjust it to what ever depth with the wet mount. This is the best way to get the most out of any FF. Search wet mount and you will see what we are talking about. I am using a 5 inch pvc pipe with a rubber cap held down by a hose clamp. I check the water level before loading up to fish.

Good luck

Steve