Reply
 
Thread Tools Display Modes
 
Old 09-24-2013, 08:34 PM   #1
Veteran Member
 
City: Columbia, SC
Country: USA
Vessel Name: Wish list
Join Date: Feb 2013
Posts: 25
Silver dollars in fresh water holding tank

Recently a friend told me about an old school sailor he was talking with, he explained that on his boat he puts silver dollars in his fresh water holding tank. The person conveyed to my friend that the water tanks on Navel vessels used to be lined with silver.

Thinking about this conundrum..silver is bacterialstatic - suppose could help balance the Ph and prevent bacterial growth.

Is there anything to this story?
__________________
Advertisement

Midshipman is offline   Reply With Quote
Old 09-24-2013, 08:56 PM   #2
Moderator Emeritus
 
jwnall's Avatar
 
City: St. Marks, Florida
Country: US
Vessel Name: Morgan
Vessel Model: Gulfstar 36
Join Date: Sep 2012
Posts: 3,621
Um, bleach is cheaper.
__________________

jwnall is offline   Reply With Quote
Old 09-24-2013, 11:26 PM   #3
Guru
 
SomeSailor's Avatar
 
City: Everett, WA
Vessel Name: Honey Badger
Vessel Model: 42' CHB Europa
Join Date: Oct 2011
Posts: 784
I've heard that before. 23 years in the Navy and I never saw the inside of a potable water tank. I heard you didn't wanna know.
SomeSailor is offline   Reply With Quote
Old 09-25-2013, 01:16 AM   #4
Guru
 
City: Hotel, CA
Country: Fried
Join Date: Sep 2011
Posts: 8,328
Both copper and silver have properties that slow algae of microbial growth and act as mild disinfectants but as mentioned above, bleach is much much cheaper.

Silver lined water tanks??? Who knows, I've often thought our local water company had gold plated meters for the prices they charge
__________________
Craig

It's easier to fool people than to convince them that they've been fooled - Mark Twain
CPseudonym is offline   Reply With Quote
Old 09-25-2013, 05:40 AM   #5
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,525
<Both copper and silver have properties that slow algae of microbial growth and act as mild disinfectants>.

Copper tubing is cheap a lasts longer than plastic stuff.

Light doesnt get thru copper tubing , another plus if fauna & flora in the drinking water is not desired.
FF is offline   Reply With Quote
Old 09-25-2013, 07:15 AM   #6
Senior Member
 
robbie's Avatar
 
City: newfoundland
Country: canada
Vessel Name: E.E.S.
Vessel Model: 38' Northumberland
Join Date: Mar 2013
Posts: 140
While we're on the subject of water tanks, I was wondering if the water tank should be drained for winter, and is it a good idea to sanitize the system every year?.
Sorry to change the subject but I'm waiting for a survey report to arrive, if all is well, and it should be, I will have my first large boat, well 38' x 12' 6" is big to me!!
Robbie.
robbie is offline   Reply With Quote
Old 09-25-2013, 10:10 AM   #7
Guru
 
hollywood8118's Avatar
 
City: Port Townsend Washington
Country: USA
Vessel Name: " OTTER "
Vessel Model: Ocean Alexander Europa 40
Join Date: Nov 2009
Posts: 1,482
Quote:
Originally Posted by FF View Post
<Both copper and silver have properties that slow algae of microbial growth and act as mild disinfectants>.

Copper tubing is cheap a lasts longer than plastic stuff.

Light doesnt get thru copper tubing , another plus if fauna & flora in the drinking water is not desired.
It appears that you have not priced copper lately... also depending on the location "plastic" tubing may last longer ( ie sources of corrosion, alkalinity, galvanic issues). The wirsbo tubing is pretty hard to beat.

HOLLYWOOD
hollywood8118 is offline   Reply With Quote
Old 09-25-2013, 10:41 AM   #8
Scraping Paint
 
City: Fort Lauderdale
Vessel Model: CHB 48 Zodiac YL 4.2
Join Date: Oct 2007
Posts: 3,804
Quote:
Originally Posted by hollywood8118 View Post
It appears that you have not priced copper lately... The wirsbo tubing is pretty hard to beat.

I'll second that and suggest that using the crimp rings instead of the push-on connectors is cheaper, faster, and far less prone to leakage from less than perfect tubing preparation and installation.
RickB is offline   Reply With Quote
Old 09-25-2013, 02:43 PM   #9
Guru
 
Conrad's Avatar
 
City: Calgary
Country: Canada
Vessel Name: Blue Sky
Vessel Model: Nordic Tugs 42 Hull #001
Join Date: Oct 2007
Posts: 1,553
You may want to ensure that you don't put too much silver in your tank...

Real-life 'Blue Man' dies after heart attack, stroke - TODAY.com
__________________
Conrad
Berthed in
Campbell River BC
Conrad is offline   Reply With Quote
Old 09-26-2013, 05:33 AM   #10
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,525
<I'll second that and suggest that using the crimp rings instead of the push-on connectors is cheaper, faster, and far less prone to leakage from less than perfect tubing preparation and installation.>

Great if you carry enough spare rings and the crimp tool.

A Flair tool will probably be aboard to repair the Air cond and refrigeration , and tubing is aviliable worldwide.

Special brand of Crimps ? maybe not.
FF is offline   Reply With Quote
Old 09-26-2013, 07:15 AM   #11
Scraping Paint
 
City: Fort Lauderdale
Vessel Model: CHB 48 Zodiac YL 4.2
Join Date: Oct 2007
Posts: 3,804
The learning curve and failure rate for the once a year user of copper flaring tools is sky high.

Cinchclamps can be installed by practically anyone and are very reasonably priced.


After using PEX and cinchclamps for a recent potable water system rebuild, I will never even consider copper for future work of that sort. And I am practiced enough with copper to do high pressure air conditioning and refrigeration connections without leaks. My take on it is use the best available technology and for potable water systems on small boats, copper tubing has been relegated to the bronze age.
RickB is offline   Reply With Quote
Old 09-26-2013, 10:44 AM   #12
Scraping Paint
 
City: Fort Lauderdale
Vessel Model: CHB 48 Zodiac YL 4.2
Join Date: Oct 2007
Posts: 3,804
Quote:
Originally Posted by FF View Post

A Flair tool will probably be aboard to repair the Air cond and refrigeration , and tubing is aviliable worldwide.
How many here carry a can of refrigerant, a vacuum pump, guages, scale, oil, and driers as spare parts to service their AC&R installations? You can flare all the tubing in the world but without the rest of the stuff you aren't going to achieve much.
RickB is offline   Reply With Quote
Old 09-26-2013, 11:00 AM   #13
Guru
 
ancora's Avatar
 
Join Date: Dec 2007
Posts: 3,489
When I was a kid I would go out and pick wild mushrooms with my grandfather. When cooking the mushrooms, they would add a quarter to the pot, the theory being, if the quarter turned black the mushrooms were poisonous. Don't know how I survived to be an old coot.
ancora is online now   Reply With Quote
Old 09-27-2013, 07:51 AM   #14
Guru
 
CaptTom's Avatar
 
City: Southern Maine
Country: USA
Vessel Name: Cygnus
Vessel Model: Prairie 36 Coastal Cruiser
Join Date: Dec 2012
Posts: 1,373
Quote:
Originally Posted by robbie View Post
While we're on the subject of water tanks, I was wondering if the water tank should be drained for winter, and is it a good idea to sanitize the system every year?
Yes, and yes. You should empty it nearly completely, and some folks (I'm one) put in a couple of gallons of non-toxic anti-freeze and run that through the lines. Or you can blow them out. Water will collect in the lowest spots and freeze. Some plastic pipes can handle "a little" freezing, some will be weakened. Fixtures can and will be damaged.

Sanitize with a little bleach, let it sit for a day or so, then flush with fresh city water. Keep it clean by USING IT. Municipal water supplies contain chlorine or some other chemical to keep the growth down. Keeping fresh water moving through your system will keep it the same quality as your home water.

Back to the subject of silver and copper:

I've heard that putting a penny or two in your air conditioner strainers helps keep growth down. Never had the problem so I've never tried it. Maybe when I migrate to warmer waters I'll have to give it a shot.
CaptTom is offline   Reply With Quote
Old 09-27-2013, 08:05 AM   #15
Guru
 
AusCan's Avatar
 
City: Adelaide
Country: Australia
Vessel Name: Kokanee
Vessel Model: Cuddles 30 Pilot House Motor Sailer
Join Date: Jul 2012
Posts: 2,095
Money thrown anywhere in the boat usually has a positive effect, although sometimes it takes a large number of silver dollars.
AusCan is offline   Reply With Quote
Old 09-27-2013, 09:21 AM   #16
Senior Member
 
Adelaide's Avatar
 
City: La Conner, WA
Country: USA
Vessel Model: 1983 Tung Hwa Clipper
Join Date: Sep 2011
Posts: 365
Quote:
Originally Posted by robbie View Post
While we're on the subject of water tanks, I was wondering if the water tank should be drained for winter, and is it a good idea to sanitize the system every year?.
Sorry to change the subject but I'm waiting for a survey report to arrive, if all is well, and it should be, I will have my first large boat, well 38' x 12' 6" is big to me!!
Robbie.

Do you pull your boat for the winter? If so, you will need to do as the other poster stated. In the NW, we don't need to drain our tanks if the boat is in the water..... the tanks are usually below the water line, so they won't freeze. I also have a space heater inside the boat that turns on when the temp gets below 38F. The best thing to do is talk with other locals in your area....Marina/Yard/Surveyor etc....
Adelaide is offline   Reply With Quote
Old 09-27-2013, 10:23 AM   #17
Enigma
 
RT Firefly's Avatar
 
City: Slicker?
Country: Bumpkin?
Join Date: Oct 2007
Posts: 9,996
Greetings,
Mr. Robbie. I would sugest you use the RV anti freeze (AF) in everything BUT the water tank and the hot water tank. Drain both fully and isolate. That AF is difficult to completely flush from large volumes such as mentioned above and will leave a taste in your water. By all means sanitize in your spring re-commissioning. Some bleach in your flushing water which you can run through the WHOLE system should do the job. Can't quite remember the concentration though.
__________________
RTF
RT Firefly is online now   Reply With Quote
Old 09-27-2013, 01:46 PM   #18
Senior Member
 
robbie's Avatar
 
City: newfoundland
Country: canada
Vessel Name: E.E.S.
Vessel Model: 38' Northumberland
Join Date: Mar 2013
Posts: 140
Thanks for the replies everyone, I'll arrange to get that job done asap as she's on the hard for the winter now.

Robbie
__________________

robbie is offline   Reply With Quote
Reply

Thread Tools
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 12:09 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012