Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 03-05-2011, 10:35   #1
Registered User

Join Date: Aug 2010
Location: Key West, Houston bound.
Boat: 1979 28' Mariner Sloop
Posts: 17
Taking on Water, Depth Sounder

We are sleuthing our way through a pesky leak. If our transducer (which is not currently operational) is a through hull mounted device can we tell from inside the boat looking at the back of it? Will it be obvious from the outside? We recently had her out of the water and there was nothing that resembles pics I have looked at online. Ultimately my question is: Is there ever a transducer that breaches the hull but is completely seamless on the outside?
We think we have determined that the leak can't be at the transducer because it is not the type that breaches the hull but we want all the advice we can get to make us feel certain. Thanks people!!
Wunu is offline   Reply With Quote
Old 03-05-2011, 11:04   #2
Marine Service Provider
 
witzgall's Avatar

Join Date: Oct 2006
Location: Eastern Shore, MD
Boat: Camper Nicholson 44 Ketch
Posts: 2,059
Re: Taking on water, depth sounder

Wunu;

Yes, many transducers are designed to not protrude below the hull at all. You will find them most often on racing boats. We had a B&G depth transducer that was removeable, but when in place was flush with the outside skin of the hull.

Chris
witzgall is offline   Reply With Quote
Old 03-05-2011, 11:08   #3
Registered User
 
Marksman's Avatar

Join Date: Apr 2009
Location: Kingston, Wa.
Boat: 1966 Buchan 37
Posts: 302
Re: Taking on water, depth sounder

The transducer for my depth sounder is a skimmer type, but I simply epoxied it to the inside of the hull and the pulses transmit thru the fiberglass. I get a very good picture well past 600 ft. No holes, no leaks.
__________________
Fred Guy
Maelstrom
Marksman is offline   Reply With Quote
Old 03-05-2011, 11:11   #4
running down a dream
 
gonesail's Avatar

Join Date: Mar 2006
Location: Florida
Boat: cape dory 30 MKII
Posts: 3,105
Images: 7
Send a message via Yahoo to gonesail
Re: Taking on water, depth sounder

we have a flush mounted thru hull transducer but you can easily see it from the inside of the hull. sometimes when i realize it is plastic i worry about how strong it is etc. i also have one epoxied to the inside of the hull with no hole.
__________________
some of the best times of my life were spent on a boat. it just took a long time to realize it.
gonesail is offline   Reply With Quote
Old 03-05-2011, 11:18   #5
cat herder, extreme blacksheep

Join Date: Jul 2008
Location: furycame alley , tropics, mexico for now
Boat: 1976 FORMOSA yankee clipper 41
Posts: 18,967
Images: 56
Re: Taking on water, depth sounder

my ericson used to have TRansducer, nonfunctional, protruding via a piece of rotted wood thru her hull.... i decided to rem0ve that potential for disaster during her last haul--- have had no problems since---- many times i have seen that piece of wood rot and cause problems....gooood luck..
zeehag is offline   Reply With Quote
Old 03-05-2011, 12:19   #6
Registered User

Join Date: Aug 2010
Location: Key West, Houston bound.
Boat: 1979 28' Mariner Sloop
Posts: 17
Sorry all. I have the worst luck clearly asking my questions on here!?! I'll get better at it.
Gonesail might have got closest to what I was trying to ask.
Did you mean to say that your thru hull transducer is clearly visible from the outside? I would expect to see it from the inside. I appreciate all of your responses, I am not trying to find a transducer I will like, I am trying to figure out if my port side leak could be from my transducer. You can not see my transducer from outside the boat. If that means it doesn't penetrate the hull, I can rule it out as my leak source.
Again, I am so so new to all this boat maintenance I am grateful for you taking the time to respond.
Wunu is offline   Reply With Quote
Old 03-05-2011, 15:24   #7
Registered User

Join Date: Mar 2009
Location: Australia, Hervey Bay QLD
Boat: Boden 36 Triple chine long keel steel, named Nekeyah
Posts: 909
Re: Taking on water, depth sounder

If you want to know whether it leaks, follow its cable down until you find it inside and then observe the area around it.
Regards,
Richard.
boden36 is offline   Reply With Quote
Old 03-05-2011, 15:28   #8
Registered User

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 20,420
Re: Taking on water, depth sounder

Perhaps walk into a chandlery, grab any transducer and have a look? Then go to the boat and compare. The thru-hull type has a pretty specific looks and just by looking at the back side of it (!) you can (I think) tell it.

b.
barnakiel is offline   Reply With Quote
Old 03-05-2011, 16:13   #9
Registered User
 
Capitain Mike's Avatar

Join Date: Mar 2011
Location: Amorgos Greece Mediterranean Sea
Boat: Cobra 850
Posts: 249
Send a message via Yahoo to Capitain Mike Send a message via Skype™ to Capitain Mike
Re: Taking on water, depth sounder

Quote:
Originally Posted by Wunu View Post
Sorry all. I have the worst luck clearly asking my questions on here!?! I'll get better at it.
Gonesail might have got closest to what I was trying to ask.
Did you mean to say that your thru hull transducer is clearly visible from the outside? I would expect to see it from the inside. I appreciate all of your responses, I am not trying to find a transducer I will like, I am trying to figure out if my port side leak could be from my transducer. You can not see my transducer from outside the boat. If that means it doesn't penetrate the hull, I can rule it out as my leak source.
Again, I am so so new to all this boat maintenance I am grateful for you taking the time to respond.
It sounds as though you don't know where to look for your transducer inside or outside. If you can see your transducer inside you would know if there was a leak around it. IMHO AFAIK. Transducer position is best where there are less bubbles etc. So you need to search both sides of the keel as close to the cutting edge as possible looking out from the keel port and starboard most transducer are fitted vertically as close to the keel as possible. have you tasted the water in the bilge is it salty or fresh, do you have a leak through your stanchions, sail track, garage, grab rails etc. You would see it inside it would be either bonded vertically to the inside of the hull and possibly outside depending on the type.
Attached Thumbnails
Click image for larger version

Name:	Thru hull.JPG
Views:	262
Size:	78.8 KB
ID:	26929  
Capitain Mike is offline   Reply With Quote
Reply

Tags
depth, depth sounder, water

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Changing a thru-hull depth sounder in the water SeawindGirl Marine Electronics 17 28-09-2020 19:23
Need Depth Sounder Advice lgfirstmate Meets & Greets 8 06-12-2010 15:16
Dinghy Depth Sounder dadidoc Auxiliary Equipment & Dinghy 11 19-10-2010 07:42
Sonar Depth Sounder? paula Marine Electronics 3 29-08-2007 02:22
Depth Sounder Installation Steve Kidson Marine Electronics 1 12-06-2006 04:25

Advertise Here


All times are GMT -7. The time now is 19:51.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.