Who knew that a product called Duct Seal, a type of electrical putty, would become the perfect solution for securing your transducer inside your kayak. It has been a "Set It and Forget It" kayak transducer solution that has worked flawlessly every single time I've been on the water. Thousands of kayak fishermen have discovered this great product and so can you.
Using the putty method of installing your transducer allows you to "shoot through the hull". This means the transducer is inside your kayak and the transducer never touches the water, yet works perfectly as it should.
The Photo above shows a Humminbird Transducer in putty. The yellow box is the kayak power supply system for the fish finder designed and assembled by Hammerhead Kayak Supply. You can find these on the website. All photos by Russ James. Do not use without permission.
I get a lot of questions asking the best way to mount the transducer. Using this putty is the best I have found. Here are just a few of the characteristics.
How to Use Duct Seal
Here is a step by step description of using putty to mount your transducer inside your kayak.
Problems with Other Methods of Mounting the Transducer
are a number of ways kayakers have mounted fish finder transducers.
Some work well but come with their own set of problems. I am sure that some people have figured out ways around the problems and are using one of these methods just fine. But this will give you an idea of what is out there and any potential problems that exist.
Gluing the transducer directly to the kayak using marine glue.
This may be a popular method. You simply put marine glue on the kayak hull where you want the transducer to go. You still need to make sure there are no air bubbles which is hard to do when working with a tube of glue.
You will then have to tape the transducer down firmly until the glue hardens. Pray the tape doesn't fail before it has time to set. You won't know if it works until it is dry. If you have bubbles it can be some work to get the glue off and try again.
Over the Side of the Kayak Transducer Mount.
This works well. The transducer is mounted on PVC and can be mounted so the transducer is in the water off the side of the kayak.
The problem is that you have a lot of drag on that side of the kayak. You will have a lot of corrections strokes and the drag will slow you down. It can get in the way when fishing on weedy or brushy lakes.
Through the Scupper Hole Transducer Mount
This is another popular way of mounting a transducer. The transducer is mounted on a length of PVC plastic pipe the size of the scupper hole. The transducer is placed in the kayak from the bottom. If you make your own it can be a bit time consuming to get it right. There is slight drag and on rivers there is dangers of hitting rocks.
Because the PVC pipe is inserted from the bottom, if you want to remove it you have to get out and turn the kayak over. You cannot drag your kayak over anything while the transducer is in place.
The PVC pipe may be in the way if it is near the feet, but can be mounted in any scupper hole.
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