3-in-1 transducer install

Hi all - I have a Go7 and was given a 3-in-1 transducer from a buddy (non active imaging). I'm trying to figure out the best way to mount this and curious if anyone has this big transducer in their yak? I know it's a bit overkill but I got the transducer for free and already have the Go7 on my boat so trying to make it work.

Right now I'm leaning towards the foam cutout + water method as described in this video:

Any thoughts?

I'm a fan of using an in-hull transducer installs.  It makes it easy for me to move FF's from one yak to another as well.  I started with the foam block, and it does work fine.  But I got lazier and started using the duct seal method: http://www.norcalkayakanglers.com/index.php?topic=38441.0  and have only used it from then on.  It's super easy to shape and mold and make any transducer fit in your hull, and the stuff is super cheap.  Has lasted me several years, but occasionally have replaced it.

I'm a fan of using an in-hull transducer installs.  It makes it easy for me to move FF's from one yak to another as well.  I started with the foam block, and it does work fine.  But I got lazier and started using the duct seal method: http://www.norcalkayakanglers.com/index.php?topic=38441.0  and have only used it from then on.  It's super easy to shape and mold and make any transducer fit in your hull, and the stuff is super cheap.  Has lasted me several years, but occasionally have replaced it.

+1 for duct seal. It doesn't get any easier.

https://www.homedepot.com/p/Gardner-Bender-1-lb-Plug-Duct-Seal-Compound-DS-110/100212441

If it is a side scan transducer all the research I've done says it's not possible to do an in-hull. You will need to use an an exterior arm, or mount under hull. There is a chance it could work without the side scan being functional but I haven't been able to find any information about that. 

Thanks for the replies! I'm all about making it easy and looks like duct seal is a good move.

And I am also a bit worried about sidescan - I don't care about sidescan but am also curious if people have used sidescan transducers via thru-hull installation and it's worked fine for normal sonar?

My hobie is an older model and doesn't have the lowrance modification (since I've seen some ppl use 3-in-1s via that but wont work for my use case)

If you try mounting it in-hull let us know how it works out. I’d love to ditch the side arm, and go back to in-hull. I have the big Raymarine transducer, and it’s always getting seaweed, and eelgrass stuck on it.

Just rementhat the 3 in 1 doesn't have e flat bottom, it's rounded. Probably will still work, but the install will be a bit trickier.

(And you are welcome)
I thought I recognized the handle

I'll let folks know how it turns out, probably will install in the next week. If anyone has experience w/ a 3-in-1 thru-hull install, pls feel free to PM me or respond here!