Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-27-2018, 04:51 AM   #1
Senior Member
 
City: marco island
Country: usa
Join Date: Apr 2012
Posts: 104
Bromine taps in raw water strainers good or snake oil

My friend who also owns a Mainship puts Bromine Taps in the Raw water strainer bowl for both his AC and Generator strainers. He think it could cut down on potential growth in the cool system lines.

What do you think. To me I would think it would make little difference??
__________________
Advertisement

jann is offline   Reply With Quote
Old 09-27-2018, 06:35 AM   #2
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in Crisfield, MD
Country: USA
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 7,307
Yes, it does cut down on marine growth (used it in my AC system). I became concerned with that it might be corroding the condenser coils and stopped using them. I found shutting down the AC units, closing the seacock and running a dehumidifier for a few days worked better. Closing the seacock shut off the flow of water with oxygen. When the water was depleted of oxygen, the marine organisms died. The dehumidifier kept the humidity in the boat below 50%.

Ted
__________________

__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is offline   Reply With Quote
Old 09-27-2018, 07:09 AM   #3
Senior Member
 
City: Chicago/Montrose Harbor
Country: United States
Vessel Name: Sea Jay
Vessel Model: Non Trawler ;-) Ask me if it matters LOL
Join Date: Jun 2016
Posts: 457
If you put them in the strainer that supplies the Head, does it also kill the stink that grows between uses?
Gmarr is offline   Reply With Quote
Old 09-27-2018, 09:33 AM   #4
Guru
 
City: Full Time Cruising East Coast
Country: USA
Vessel Name: Meridian
Vessel Model: Krogen-42
Join Date: Aug 2011
Posts: 972
I use copper plumbing fittings from the hardware store. A couple in each basket
__________________
-------------------------
Terry
Meridian
KK-42097
meridian is offline   Reply With Quote
Old 09-27-2018, 10:05 AM   #5
Guru
 
Tom.B's Avatar
 
City: Cary, NC
Country: USA
Vessel Name: Skinny Dippin'
Vessel Model: Navigator 4200 Classic
Join Date: Jul 2009
Posts: 5,652
Ya know... I am not criticizing any of the members that post this, but I have seen both of these claims of bromine and copper fittings many times on this forum. I'd love to see some actual testing and science applied to these, and maybe some other, solutions some day (unless there is some that can be pointed to). It feels both legit... AND... a little old wive's tail-ish.
__________________
2000 Navigator 4200 Classic
(NOT a trawler)
Tom.B is online now   Reply With Quote
Old 09-27-2018, 10:23 AM   #6
Guru
 
psneeld's Avatar
 
City: AICW
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 19,381
I would imagine for some boats and sometimes it works...thus the stories.

I can't imagine that someone hasn't marketed it if there was more than s shread of evidence of it working.

Can't believe the ultrasonic people aren't on it, surprised the bottom paint people aren't selling a strainer paint, can't believe someone isn't all over it, let alone proving/marketing any of it.

I stick with cleaning it occasionally until I see some evidence show it works more often than anecdotally.
psneeld is online now   Reply With Quote
Old 09-27-2018, 11:26 AM   #7
TF Site Team
 
City: Westerly, RI
Country: USA
Vessel Name: N/A
Vessel Model: 1999 Mainship 350 Trawler
Join Date: Jan 2014
Posts: 1,662
Moved from the "Marlow - Mainship" to "General Discussion" sub-forum as this is not a brand specific subject.

I can see the potential benefits of bromine, it requires water rushing over it t dissolve the tablets, and works well in hot water. I suspect sitting in a strainer can achieve that. I assume it would work as well preventing growth in a cooling system as it does in a hot tub/spa.

Copper's natural resistance to bacteria is why it is frequently used in door handles and push plates on doors. It has been a proven biocide for anti-fouling. However, I am curious about whether copper fittings can leach sufficient amounts of copper to be effective.
Shrew is offline   Reply With Quote
Old 09-27-2018, 03:50 PM   #8
Guru
 
ranger42c's Avatar
 
City: Maryland
Country: USA
Vessel Model: 42' Sportfish
Join Date: Aug 2013
Posts: 4,432
Quote:
Originally Posted by meridian View Post
I use copper plumbing fittings from the hardware store. A couple in each basket
Me too, at least in the AC strainer basket, for about the last 3 years. Don't seem to notice much in the way of marine growth, anymore... but that might just be coincidental.

Doesn't do anything for silt, mud, weeds/grass, etc. of course.

-Chris
__________________
South River, Chesapeake Bay
ranger42c is offline   Reply With Quote
Old 09-27-2018, 04:09 PM   #9
Guru
 
boatpoker's Avatar
 
City: Port Credit
Country: Ontario
Vessel Name: DIRT FREE
Vessel Model: Benford Fantail 38
Join Date: Sep 2012
Posts: 2,434
The science has already been done. Google "bromine copper corrosion" or this paper
__________________
If you can live with the consequences, go for it - wg
Y'am what y'am an' thats' all that y'am - Popeye
I had an allergic reality - Jillie the Bean
boatpoker is offline   Reply With Quote
Old 09-27-2018, 08:18 PM   #10
Guru
 
City: Between Oregon and Alaska
Country: US
Vessel Name: Charlie Harper
Vessel Model: Wheeler Shipyard 83'
Join Date: Jun 2016
Posts: 1,467
Bromine is naturally in salt water. I would think marine organisms would be somewhat immune to it. As a sanitizer, bromine tablets dissolve much slower than chlorine. The tablets last a long time in a pool system. I wouldn't think there would be enough bromine, given the volume of water a salt water pump moves, to kill anything.

When I cruise, I try to anchor and spend some time in river mouths to flush my engines exchangers and plumbing with fresh water.
Lepke is offline   Reply With Quote
Old 09-27-2018, 09:41 PM   #11
Grand Vizier
 
Delfin's Avatar
 
Join Date: Jan 2010
Posts: 3,411
FWIW, when you put Bromine tablets in sea water, you get bromine gas bubbles. I did an experiment with aluminum foil immersed in sea water with hot tub tablets added. The aluminum had holes eaten in it. Bromine gas in the form of methyl bromide is great stuff if you want to sterilize a field because it kills everything.
__________________

__________________
Delfin
"Dad always thought laughter was the best medicine, which I guess is why several of us died of tuberculosis." - Jack Handy
Delfin 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





All times are GMT -5. The time now is 02:14 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012