Thanks Dave. Yes that is correct. Grenadine currently has separate through-hulls for depth transducer and speed transducer, to port and starboard respectively, aft of the keel and outboard by a foot or so. My new system has a single DST transducer which the manufacturer recommends go through the hull forward of the keel and where the deadrise isn’t steep. The correct long-term solution would be to glass in the current two transducer through-hulls, and cut a new one in the correct location for the new DST transducer. If the new transducer insert will fit in one of the current through-hulls, then I have options. If not I have no choice but to cut a new hole, and I can wait to remove the current transducer and glass over their holes.
Cheers, Randy > On Mar 23, 2021, at 4:58 AM, Dave S <syerd...@gmail.com> wrote: > > If I get the math you are going from two through hulls to one - I did the > same and removed my overboard discharge at the same time. > > Why not eliminate the unused holes? It needs to be done properly for sure > but it’s not difficult. > > Some pics here: > > http://cncwindstar.blogspot.com/2016/08/repair-of-keelhull-joint-closing.html?m=1 > > <http://cncwindstar.blogspot.com/2016/08/repair-of-keelhull-joint-closing.html?m=1> > > Dave > 33-2 > > Sent from my iPhone > >> On Mar 23, 2021, at 2:38 AM, Randy Stafford via CnC-List >> <cnc-list@cnc-list.com> wrote: >> >> Listers, >> >> I appeal to your collective wisdom here. Over the offseason I acquired a >> new instrument system for Grenadine, including a new DST transducer which >> goes through the hull. I’m debating whether to reuse an existing >> through-hull hole (for the old speed or depth sensor), or cut a new one. >> The manufacturer of my new DST transducer recommends locating it forward of >> the keel, whereas my current transducer through-hulls are aft of the keel. >> On the other hand I’d like to not cut new holes through my hull if not >> absolutely necessary. What say you? Also, what kind of sealant do y’all >> recommend for bedding a through-hull? >> >> Thanks, >> Randy Stafford >> S/V Grenadine >> C&C 30 MK I #79 >> Ken Caryl, CO >> Thanks to all of the subscribers that contributed to the list to help with >> the costs involved. If you want to show your support to the list - use >> PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - >> Stu
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
