Norm, At Howard Audsley's suggestion I used a clear silicon sealer to immerse the fish finder sender in my hull. It works perfectly. There is no advantage in using an epoxy and it will make changing the mounting point impossible without destroying the sender. The sealer is cheap and available at any Ace Hardware. Clarence Andrews Soon to be ex-skipper of Carpe Ventum. ----- Original Message ----- From: "nbundek" <nbundek@earthlink.net> To: <montgomery_boats@mailman.xmission.com> Sent: Tuesday, November 01, 2005 1:32 AM Subject: M_Boats: Depth and Fish Finder installation on M15 I am installing a Piranha 15 combination fish and depth finder in the forward locker forward of the keel slope on my M15. Can anyone recommend a non permanent material to set the transducer in? I want to test it before epoxying it in place. The hull has a slight concave well just forward of the keel slope that I am going to test. Would it better to fill the well with epoxy to make a level spot or just use the attaching material to fill the well and hold the transducer in place? Any insights would be appreciated. Norm M15 #172 _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats