Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-16-2016, 08:01 PM   #1
Guru
 
angus99's Avatar
 
City: Signal Mtn., TN
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,741
Another bonding question

There are several bronze through hulls above the waterline on my boat that are connected to the bonding system. They range from a few inches to almost a foot above the boot stripe. Don't know if the factory or the PO wired them together. I can see some possible rationale for the one closest to the waterline being bonded -- although I've never seen it submerged, I also haven't had the boat fully loaded yet with the tanks topped off. I'm thinking the ones a foot above the waterline just add several unnecessary terminations and that the system is better off without them. As I understand it, metals have to be submerged in the same electrolyte (seawater) to create currents that lead to galvanic corrosion.

Am I missing anything? (Besides the ability to rotate this picture?)
Attached Thumbnails
image.jpg  
angus99 is offline   Reply With Quote
Old 04-16-2016, 08:42 PM   #2
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Join Date: Apr 2014
Posts: 5,438
Is there raw water running out of either of those hoses continually at any time?

That is not that cheap white corrugated on the inside plastic hose is it?
Capt.Bill11 is offline   Reply With Quote
Old 04-16-2016, 09:23 PM   #3
Guru
 
City: Here
Join Date: Sep 2012
Posts: 2,940
Nope, you haven't missed a thing.
boatpoker is offline   Reply With Quote
Old 04-16-2016, 11:00 PM   #4
Guru
 
C lectric's Avatar
 
City: Gibsons, B.C., Canada
Vessel Name: Island Pride
Vessel Model: Palmer 32'
Join Date: Oct 2007
Posts: 4,409
Bonding out of the seawater fittings is pointless. to my understanding.
C lectric is offline   Reply With Quote
Old 04-17-2016, 05:30 AM   #5
Guru
 
angus99's Avatar
 
City: Signal Mtn., TN
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,741
Thanks, all.

Quote:
Originally Posted by Capt.Bill11 View Post
Is there raw water running out of either of those hoses continually at any time?

That is not that cheap white corrugated on the inside plastic hose is it?
Good thought. Raw water runs out of one of them (the one closest to the waterline, but still normally not submerged) when the AC pump is running. Having a hard time imagining it running enough to waste a seacock, but it probably can't hurt to leave it bonded. The others are bilge pump hoses and, yes, it's the cheap crap somebody doubtless thought was a good deal. Replacing it is on my list.
angus99 is offline   Reply With Quote
Old 04-17-2016, 06:15 AM   #6
Guru
 
City: Seaford Va on Poquoson River, VA
Vessel Name: Old Glory
Vessel Model: 1970 Egg Harbor 37 extended salon model
Join Date: Jan 2016
Posts: 2,264
I added two Rule 3700.
The hose I used was our blue pool cleaner suction hose. The hose is actually very durable and reinforced. The inner ribbing is flattened so smoother. Consider pool pumps have no troubles with flow and these hoses get lots of sun exposure and seem to last forever. The size was 1.5 inch and was perfect for those pumps.

A rule 2000, I got some 'liquid tight non metallic grey conduit, 1.25 inch. That also been perfect.
Just like this here.
http://conduit-solution.com/1-2-1-fl...conduit/185121
sdowney717 is offline   Reply With Quote
Old 04-17-2016, 06:19 AM   #7
Guru
 
caltexflanc's Avatar
 
City: North Carolina for now
Join Date: Aug 2011
Posts: 6,348
Looks like it is wired as part of a "circuit", so I'd be hesitant to break it. I'd just leave well enough alone. Have you checked with DeFever?
__________________
George

"There's the Right Way, the Wrong Way, and what some guy says he's gotten away with"
caltexflanc is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 04:47 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012