Plastic connector thru-hull isn't really right for any underwater hole.

Maralon would be OK.

Years ago, the first big purchase for littlegull was a 'forward looking' sounder.

Dug a hole in the stem for the rather large transducer, that entered the hull

right where the curved front of the cabin is on deck. The Interphase must be

obsolete by now, so don't know what I'm to do with that hole. Hope I remember

at splash.