A transducer can not shoot through wood or metal hulls. Wood and metal hulls require either a transom mount or "thru-hull" installation. For shoot-thru-hull applications many boat hulls have a flat keel pad that offers a good transducer mounting surface.

If you are using a Skimmer transducer versus a Pod transducer for this installation, make sure the Skimmer transducer is oriented so the nose of the transducer is facing the bow (front) of the boat. Also, if the transducer has a built in temp sensor, it will only show the temperature of the hull, not the water temp.

Before you epoxy the transducer to the hull, make sure the area is clean, dry and free of oil or grease. The surface of the hull must be flat so the entire transducer face is in contact with the hull. Also, make sure the cable is long enough to reach the sonar unit.

1:Sand face of transducer and bottom of hull.

Sand both the inside surface of the hull, where the transducer is to be epoxied, and the face of the transducer.

Start with a rougher grit sandpaper, such as 60 grit, and finish with a smoother grit, such as 160 grit, sandpaper. Sand the inside surface of the hull until it is smooth to the touch.

2.: Apply epoxy to the face of transducer and bottom of hull.

3:Epoxy transducer to hull.

Epoxy

Hull

To bow

The sanded area should be about 1-1/2 times the diameter of the transducer. After sanding, clean the hull and face of the transducer with an alcohol wipe to remove any sandpaper grit and dust.

Apply a thin layer of epoxy (about

1-16" or 1.5 mm) on the face of the transducer and the sanded area on the hull. Make sure there are no air pockets in the epoxy layers.

Press the transducer into the epoxy, twisting and turning it to force any air bubbles out from under the transducer face. Stop pressing when it bottoms out on the hull.

Apply pressure to hold the transducer in place while the epoxy sets. Be careful not to move the transducer while the epoxy is setting. Allow the epoxy to set before moving the boat. When finished, the face of the transducer should be parallel with the hull with a minimum amount of epoxy between the hull and transducer. After the epoxy has set, route the transducer cable to the sonar unit.

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