Larry:
As requested I have attached a picture of my transducer install. This was a replacement install after my original knot log bit the dust. The first transducer was installed in a thru-hull located under the head. While this was a good location for the transducer the new transducer would not fit in the old thru-hull and rather than undertake the process of rebuilding the hole in the hull I decided to leave the old one in place and install the new one on the hull surface in the lazarette.
My major concern about placing the transducer in the lazarette was protecting it from all the stuff that slides around when I heel - including an anchor.  I was unsure how well the transducer would work there so I wanted to be able to move it without destroying it or putting another hole in my boat. I placed the transducer just to the side and forward of the drain tube as this provided protection. The transducer fit nicely into 2" PVC tube so I cut a short length which I then inserted into an epoxy coated plywood donut that I cut with a hole saw and then epoxied the tube and base to the hull. This makes a very rugged enclosure. The transducer just sets in the tube. As I recall I used DAP sealant between the transducer and the hull. This sealant stays soft and allows the transducer to be removed if necessary. I fashioned a cap for the tube just to keep dirt out.
I feel better about the enclosure than I do about the location. The transducer works but I get "out" errors for a split second every 10 seconds or so. I think that might be caused by bubbles created by the drain but can't be sure. The error does not interfere significantly with the use of the depth gauge so I am not inclined to move it to where it might be more exposed. My preference would have been to place it where the old one was under the floor in the head as the water is less disturbed there and it is in a safe yet accessible location.


Depth Transducer unstallation.JPG

-----Original Message-----
From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> On Behalf Of Larry Gioia via Rhodes22-list
Sent: Tuesday, July 26, 2022 1:18 AM
To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
Subject: Re: [Rhodes22-list] In-hull transducer?

A picture would be great. Where has everyone installed the readout? 
  
  
Larry

> On Jul 25, 2022, at 10:54 PM, gstewart.gm at gmail.com wrote:
> 
> I put mine in the lazarette between the bulkhead and the drain. I 
> attached a short piece of pvc tube with 3M 4200 sealant and then 
> installed the transducer in the tube with DAB sealant so it can be 
> removed easily. I wanted to protect the transducer from shifting 
> materials in the lazarette and also have a system that could be 
> relocated f necessary. This seems to work well. If interested I can send a picture.
> 
> -----Original Message-----
> From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> On Behalf Of 
> Joe Dempsey
> Sent: Monday, July 25, 2022 7:23 PM
> To: 'The Rhodes 22 Email List' <rhodes22-list at rhodes22.org>
> Subject: Re: [Rhodes22-list] In-hull transducer?
> 
> Bob,
> Mine is installed in the lazzarette on the centerline just behind the 
> cockpit drain pipe. I would not epoxy in case you have to remove/replace it.
> I used clear silicone. Works fine.
> 
> Joe Dempsey
> SV Respite
> Deltaville, VA
> 
> -----Original Message-----
> From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> On Behalf Of 
> John Keyser
> Sent: Monday, July 25, 2022 4:08 PM
> To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
> Subject: Re: [Rhodes22-list] In-hull transducer?
> 
> Hi Bob,
> I put one in my boat at the same approximate place. No thru-hull 
> installation. Just epoxied it to the inside of the hull following the 
> manufacturers instructions. Works fine - no issues.
> Good luck!
> John Keyser
> "Deci-Belle"
> Philadelphia, Pa
> ________________________________
> From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> on behalf of 
> Bob Garrant <bgarrant at gmail.com>
> Sent: Monday, July 25, 2022 2:23 PM
> To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
> Subject: [Rhodes22-list] In-hull transducer?
> 
> Hi folks,
> I am installing an in-hull transducer.
> I'm trying to figure out where to locate it. Thinking about placing it 
> below the cabin floor just offset from the centerboard sleeve.
> Wondering if anyone in the group has installed an in-hill transducer 
> and how it was done.
> Thanks very much
> Bob Garrant
> Sail la Vie
> Kent Island, MD
> 
>