So i have a piranhamax 153 for my kayak, i'm going to do the thru-hull mount. My question is the best way to do it. what should i use to stick it to the hull that is pretty permenant, but doesn't require a scientist to do it? i have heard of marine goop and other things like it, also i have heard of making a well out of electrical putty and filling it with water before i go out. honestly i prefer not to have to add water before each launch,but if it works better then so be it. any help would be great!

My buddy used the Goop idea and it works well.

Make sure there is no air trapped or it will ruin the readings.

a lot of people use a bed of duct seal with good success and is easily removable or adjusted should you get an air bubble in the installation process.

I used duct seal and don't have to add water and have had no problems. Just make sure there are no air bubbles. It has held up all summer in the heat and can easily be removed without any damage. Best part is it's about 3 dollars for a package of the stuff and of it doesn't work the first time you can make adjustments easily

I used duct seal and don't have to add water and have had no problems. Just make sure there are no air bubbles. It has held up all summer in the heat and can easily be removed without any damage. Best part is it's about 3 dollars for a package of the stuff and of it doesn't work the first time you can make adjustments easily

 

+1

 

This is what I'm about to do in my kayak and I've read where a lot of other anglers have had success using this method.

I used duct seal and don't have to add water and have had no problems. Just make sure there are no air bubbles. It has held up all summer in the heat and can easily be removed without any damage. Best part is it's about 3 dollars for a package of the stuff and of it doesn't work the first time you can make adjustments easily

Like house , heat and air duct I assume? What's the package look like? Thinking of how helpful the local staff at Home Depot are. I hate having someone help me look for something that I don't even no what it is. which seems to happen pretty often lately. Lol.

Thinking about mounting mine in my canoe. But do to the v front and rear bottom I'm not sure how well it will work or how deep I can fill. I don't want to mess up my trans with something sticky. No what I mean. Lol

But I'd like to try filling it deep and level in the middle first.

Thanks for the replies guys, looks like im gonna try the duct seal first since its easy to fix if something goes wrong.i hate the thought of having to spend hours scraping off expoxy.

Like house , heat and air duct I assume? What's the package look like? Thinking of how helpful the local staff at Home Depot are. I hate having someone help me look for something that I don't even no what it is. which seems to happen pretty often lately. Lol.

Thinking about mounting mine in my canoe. But do to the v front and rear bottom I'm not sure how well it will work or how deep I can fill. I don't want to mess up my trans with something sticky. No what I mean. Lol

But I'd like to try filling it deep and level in the middle first.

Yes the house stuff. I got it at lowes I think it was in the electrical section. It's a small white or gray package looks like a wrapped brick. Not sure how it would work trying to fill a void but worth a shot. You may be better to build a transducer arm that swings up out of the way when needed. It comes off the transducer pretty easy when needed. Once I was happy with the placement I pushed some more duct seal up over the edges of the transducer to make sure it didn't budge. Only negative I found is it takes about an hour for thre water temp to be accurate once the boat is in the water.

+3 on duct seal. I used it as a temp solution until I figured out a permanent spot but it worked so good I had no reason to move it. I may move it into the water next season just to get better temp readings but the graph readings are perfect with this method.

I used the duct seal on my kayak and can't believe i ever contemplated another way..... any update on yours?  did you try the duct seal?