I have a thru hull set in by the keel housing. It is for a depth finder transducer. The unit also had a chart headsup too. VERY handy when you are cruising new waters. The depth reader is when you sail in murky water with hard bottom such as rocks. Monty 17's will sink if holed and you can't stop the ingress of the water. I looked into positive foam flotation and the amount necessary would make the boat uninhabitable. Tom B On Mon, Apr 1, 2019 at 7:37 PM Gerry Lempicki via montgomery_boats < montgomery_boats@mailman.xmission.com> wrote:
As I am stripping paint off this M17, I found a couple through hull holes that have been fiberglassed over and look to be done well. They were up front, so maybe were for depth instruments in the past. In the rear, about 6" forward of the transom, there is a through hull still there. It is capped with pipe plug fittings inside. I don't like the looks of some previous fiberglass work around it, so I am going to remove it and properly repair it. But this made me curious; what would it have been used for on an M17? It's not like one needs cooling water. Do any of you have through hulls in the bottom of a small boat?