Seacock Quality... Replace?—Currently on the hard.

May 12, 2025
29
Macgregor 22 Silverton OR
Through hull fish Finder for depth with verifier accuracy gauge called keel for those locations less than 8 feet deep. For speed take a moment during slack tide/current using your GPS against the amount of wake that you create from 3 to 12 mph to improve your ability to estimate speeds by eye. It is unlikely you will be harassed by a multitude of Slalom skiers for rides and you'll not be replacing repairing through hulls.
 
Jun 14, 2025
103
Hunter 1981 30 Chesapeake
I
Through hull fish Finder for depth with verifier accuracy gauge called keel for those locations less than 8 feet deep. For speed take a moment during slack tide/current using your GPS against the amount of wake that you create from 3 to 12 mph to improve your ability to estimate speeds by eye. It is unlikely you will be harassed by a multitude of Slalom skiers for rides and you'll not be replacing repairing through hulls.
I see. How about the 'shoot through hull' transducer? I already broke the previous transducer housing and ordered fiberglass to glass up the two thru hulls.
 
Jun 21, 2004
2,887
Beneteau 343 Slidell, LA
I had two “shoot thru“ depth transducers on my previous boat, a 1988 Hunter 33.5.
The original transducer, factory installed, was bedded in polyester resin at aft 1/3 of boat at entrance to aft berth. At some point, I replaced instruments & installed new transducer beneath V berth. Used method published in Sail magazine. Glassed a bell shaped PVC adapter to hull internal surface, filled the adaptor with mineral oil, & screwed the transducer into the adaptor. Worked well; no leaks.
 
Jun 14, 2025
103
Hunter 1981 30 Chesapeake
I had two “shoot thru“ depth transducers on my previous boat, a 1988 Hunter 33.5.
The original transducer, factory installed, was bedded in polyester resin at aft 1/3 of boat at entrance to aft berth. At some point, I replaced instruments & installed new transducer beneath V berth. Used method published in Sail magazine. Glassed a bell shaped PVC adapter to hull internal surface, filled the adaptor with mineral oil, & screwed the transducer into the adaptor. Worked well; no leaks.
This will be my way forward. No need for the two monstrous 2" holes in the bottom of my boat, even if bedded carefully by me.

Will glass them up and use the shoot through hull transducer.
 
Jan 7, 2011
5,591
Oday 322 East Chicago, IN
I would glass over the holes, use the shoot-through transducer for depth, and get a GPS for speed (at least SOG). So no holes in the hull for transducers :cool:

Greg