"Depth finder in Drift Boat?"
This topic has came up so often over the passed years, I finally had to take some pictures of the setup I installed in my boat to share with the masses.
(I'm only a little proud of it)
Granted, if you use a depth finder in an aluminum or wood boat you have to find a means to submerge the transducer.
Some have used suction cups to the outside of their boat. You simply drape your transducer cable over the gunnel to the outside of the boat, mount suction cups at the water line and this is what holds the transducer in place. This works well in case you brush an obstacle the suction cups will 'break-away' and hopefully damage to the transducer and cable will be minimal to none.
Others mount the transducer to a rod which is clamped onto the gunnel. The clamp extends out away from the boat from which the rod and transducer can be lowered into the water while in use and raised up while in shallow areas to avoid damage.
For owners of fiberglass drift boats who wish to use a depthfinder it is possible to do so without having anything clamped or hanging over the gunnel. No equipment outside of your vessel is necessary with minimal, if any, exposed cables.
Your depthfinder's transducer can "shoot" thru the fiberglass hull giving the owner peace of mind that his valuable equipment will not be damaged.
My system is entirely concealed 'inside' my boat.
There are a couple features to this system that may limit the performance of your depthfinder. Those would be water speed readings, and temperature.
I am not sure about the temperature because my depthfinder is an entry level model which does not offer temperature.
Finally here are the pictures---
The pictures can probably tell the story.
Sand the surface of the hull smooth at the location the transducer is to be mounted. I generously used clear silicone caulking to adhere the transducer to the floor.
I have been using this setup for 14 years. The only item I have replaced is the battery.
These batteries will last several "full days use" between charges, making this still a viable option when fishing several days in a location where electricity may not be available for overnight charging. If you're worried about that, bring a backup battery.