Sawdust, my Core Sound 17 wants a depth sounder.
Since it's an open boat, it will have to be mounted well forward to be out of the way. We're talking just under the little forward deck, about seven or eight feet from where I sit. Big numbers are good.
I'm leaning toward the bottom-of-the-line Hummingbird fish finder. It has big numbers, a waterproof housing and costs less than a pure depth finder.
For power, I have a motorcycle battery that I intend to make a home for.
My boat is plywood. I've heard that I can mount the transducer by just sticking it in an appropriate size puddle of epoxy. The epoxy and plywood will be invisable to the transducer.
There should be no air bubbles in the epoxy.
Have I gotten it right?
This link will get to an album page. Sometimes my album is up, sometimes you have to look for it.