Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-11-2015, 10:58 AM   #1
2 Rivet Member
 
1997 25' Safari
mastic beach , New York
Join Date: Oct 2014
Posts: 43
Sanitizing Potable Water tank

Nice day to get trailer cranked up!

What's the best way to sanitize the drinking water before filling it?
__________________

pond is online now   Reply With Quote
Old 04-11-2015, 12:00 PM   #2
Rivet Master
 
SteveH's Avatar
 
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,319
I've always put about a 1/2 cup of bleach in it, filled it with water, let set for about a day, and then drained it.

I see this is your first post, so welcome to the forums.
__________________

__________________
Regards,
Steve
SteveH is offline   Reply With Quote
Old 04-11-2015, 12:08 PM   #3
Figment of My Imagination
 
Protagonist's Avatar
 
2012 Interstate Coach
From All Over , More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,751
Quote:
Originally Posted by SteveH View Post
I've always put about a 1/2 cup of bleach in it, filled it with water, let set for about a day, and then drained it.
Don't just fill the tank; run the bleach-water through the entire plumbing system to sanitize the whole thing, not just the tank.
__________________
Cats and ultraleather Airstream upholstery don't mix!
Protagonist is offline   Reply With Quote
Old 04-11-2015, 12:31 PM   #4
Rivet Master
 
AnnArborBob's Avatar
 
2014 27' FB Eddie Bauer
Chelsea , Michigan
Join Date: May 2010
Posts: 1,792
Images: 12
After you run the bleach water (no more than 1/2 cup!) through all the pipes let it sit for a few hours to overnight. Then drain the tank and fill it with fresh water from your domestic source or some potable water source. You should be good to go. If you object to any residual chlorine smell, you can try to flush the tank once or twice, worst case, put some baking soda in the water, let it sit for a few hours, then empty and refill the tank.

All of us who have posted so far are assuming that you are asking about a periodic sanitizing of the fresh water tank. This would only be done once or twice a year under normal circumstances. More often if you suspected some contamination.

If the nature of your question was about "routine" sanitizing with each fill up of the fresh water tank, I believe that most of us do not do this. We just trust the potable water source we are using. Some people do not drink the water from their fresh water tank (we do) and they carry plastic jugs for this purpose.

Did we answer your question completely?
__________________
Bob Martel
WBCCI# 5766
AnnArborBob is offline   Reply With Quote
Old 04-11-2015, 01:47 PM   #5
retired USA/USAF

 
2001 30' Excella
Somerset , New Jersey
Join Date: Jan 2009
Posts: 2,369
We also drink the tank water so long as it comes from a reliable and good tasting source. If not sure we drink bottled water instead. If possible I will taste the water before filling the tank. During the travel season I have been known to add some bleach to the tank at our last stop prior to getting home. That way during the trip it gets sloshed around and I drain it after getting home. Has worked OK for me.
__________________
Roger in NJ

" Democracy is the worst form of government. Except for all the rest"
Winston Churchill 1948

TAC - NJ 18

polarlyse is offline   Reply With Quote
Old 04-11-2015, 02:38 PM   #6
Rivet Master
 
TinShack's Avatar

 
2005 28' Safari S/O
Paradise , California
Join Date: Jul 2006
Posts: 3,444
Images: 28
From the Airstream Manual...

....this is the way I have always done it.

Potable water systems require periodic maintenance to deliver a consistent flow of fresh water. Depending on use and the environment the system is subject to, sanitizing is recommended prior to storing and before using the water system after a period of storage. Systems with new components, or ones that have been subjected to contamination, should also be disinfected as follows:
1. Use one of the following methods to determine the amount of common household bleach needed to sanitize the tank.
A) Multiply "gallons of tank capacity" by 0.13; the result is the ounces of bleach needed to sanitize the tank.
B) Multiply "Liters of tank capacity" by 1.0; the result is the milliliters of bleach needed to sanitize the tank.
2. Mix into solution the proper amount of bleach within a container of water.
3. Pour the solution (water/bleach) into the tank and fill the tank with potable water.
4. Open all faucets (Hot & Cold) allowing the water to run until the distinct odor of chlorine is detected.
5. The standard solution must have four (4) hours of contact time to disinfect completely. If you double the solution, this concentration allows for contact time of one (1) hour.
6. When the contact time is completed, drain the tank. Refill with potable water and purge the plumbing of all sanitizing solution.
NOTE: The sanitizing procedure outlined above is in conformance with the approved procedures of RVIA ANSI Al19.2 and the U.S. Public Health Service.
__________________
Steve
"THE OLDER I GET, THE BETTER I WAS"
TinShack is offline   Reply With Quote
Old 04-11-2015, 03:53 PM   #7
2 Rivet Member
 
1997 25' Safari
mastic beach , New York
Join Date: Oct 2014
Posts: 43
This is a first time usage so don't know when the last time someone has done this.

Thanks mucho everybody.
pond is online now   Reply With Quote
Old 04-12-2015, 11:57 AM   #8
Rivet Master
 
2007 27' Classic FB
Ridgefield , Washington
Join Date: Jul 2010
Posts: 520
Images: 11
From Airstream.
Attached Files
File Type: pdf disinfect water system.pdf (22.2 KB, 212 views)
__________________
John
Woosch is offline   Reply With Quote
Old 04-12-2015, 12:15 PM   #9
TinCan
 
graysailor's Avatar
 
2016 30' Classic
Apache Junction , Arizona
Join Date: Aug 2011
Posts: 864
I agree with Protagonist. I have done this many times on my boat. For a typical Airstream fresh water tank I shock the system with 1 pint of household bleach. Fill your tank with water and the bleach and run all of the facets including the hot water as you want to get the bleach into all of the water lines. Let sit for about 2 hours then drain and flush the system with fresh water. I do this about once a year.
__________________
TinCan
graysailor is offline   Reply With Quote
Old 04-12-2015, 12:38 PM   #10
Rivet Master
 
mandolindave's Avatar
 
Join Date: Mar 2003
Posts: 2,189
Images: 4
To really be safe…..

I would add the bleach way before the fresh tank is full. That way, the rushing water will stir up the mixture.

Besides just letting the mixture sit for a few days, you could also take it for a short spin on some curvy and hilly roads. While you are at it, you could add a bag of ice into the waste tank, to scourer any build up away. Another safety tip is to sanitize your potable water white hose.

By the way, I don't drink trailer water, except for making coffee. I feel that there are too many ways and chances for the water to get contaminated. If contaminants get in there and it sits for a few weeks or more, you could end up with a breeding ground.
mandolindave is offline   Reply With Quote
Old 04-12-2015, 10:27 PM   #11
Rivet Master
 
chaseav's Avatar
 
2015 25' FB International
Join Date: Nov 2014
Posts: 556
MandolinDave almost answered my question; once sanitized and filled with potable water again, how long does everyone feel that water is safe for drinking? My unit has a filter on the kitchen sink line though it seems only to slow the flow of water... definitely not make it taste any better.
chaseav is offline   Reply With Quote
Old 04-12-2015, 11:42 PM   #12
4 Rivet Member
 
westcoastas's Avatar
 
2005 28' Safari
formerly of Tustin, Huntington Beach, Dana Point, and Laguna Beach , California
Join Date: Aug 2014
Posts: 374
Blog Entries: 1
I guess I should have taken matters into my own hands but we took off full-timing right off the lot with our used 9-yr International. We've been moving around UT, AZ, and NM for six months now and so far we haven't come down with anything (knock on wood). We use a water filter on any potable water source and then a Britta in the fridge, so we figure we're filtering potable water twice!
westcoastas is offline   Reply With Quote
Old 04-13-2015, 03:37 AM   #13
Figment of My Imagination
 
Protagonist's Avatar
 
2012 Interstate Coach
From All Over , More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,751
Quote:
Originally Posted by westcoastas View Post
We use a water filter on any potable water source and then a Britta in the fridge, so we figure we're filtering potable water twice!
A granular activated carbon (GAC) filter will remove many contaminants, but not all of them.

I won't go into the difference between transient and non-transient or community and non-community water sources, or the varying levels of testing and water treatment. I've already done that on other threads.

The important thing here is, even the best municipal water treatment only covers contaminants on the EPA primary drinking water standards list. Contaminants on the EPA secondary standards list are not health hazards— they only affect whether the water is palatable, not whether it it potable. They include contaminants that affect appearance, taste, and odor of the water. Your GAC filter will make the water more palatable. You cannot guarantee that it will make the water more potable, because many contaminants that constitute long-term or short term health hazards are not removed by a GAC filter. Chlorination or fluoridation is generally required as an absolute minimum treatment to kill coliform bacteria and other microorganisms no matter how many or few people drink the water, and no matter whether they drink water from the same source for days or years. In fact, bacteria can grow on a GAC filter, so keeping the filter clean and capped at both ends in between uses is also important.

In other words, your GAC filter doesn't necessarily make the water any safer to drink than it would be without filtration; at best it makes the water more pleasant to drink.

When you use a chlorine shock treatment on your tank and plumbing, you're making sure that no microorganisms are growing on the tank surfaces that could infect the water after it has been treated at the source. That is a good thing, and generally considered essential. It's not a sealed system (it is vented) and that means contaminants can enter the freshwater system from sources other than the water itself.
__________________
Cats and ultraleather Airstream upholstery don't mix!
Protagonist is offline   Reply With Quote
Old 04-13-2015, 06:56 AM   #14
Rivet Master
 
Msmoto's Avatar

 
2015 30' International
2009 27' FB International
2007 25' Safari
Currently Looking...
Greensboro , North Carolina
Join Date: Aug 2008
Posts: 1,559
Images: 135
My method uses 12 oz bleach for 60 gal of water capacity in my Serenity 30. After removing the under sink filter, I fill the fresh water tank about half full. Then I dilute the Clorox about 50% and carefully pour this into the tank, immediately filling the tank. With the hot water heater off, I run the hot water taps about two minutes or until the bleach smell is detected. Same for cold water.

After four hours, drain fresh water tank, refill with potable water and run the hot water a full five minutes, cold water one minute. Replace water filter. Top up fresh water and I am good to go.

Twice yearly is my schedule based upon total occupancy of about three months per year.




Ms Tommie Lauer
Greensboro, NC
2015 Serenity 30 RB / 2008 Dodge Cummins 4 X 4
WBCCI #4165 AIR #31871
__________________
Happy trails and Good Luck
Ms Tommie Fantine Lauer, Greensboro, NC
AIR #31871 K4MTL

www.fantinesvoice.com
Msmoto is offline   Reply With Quote
Old 04-30-2015, 07:39 AM   #15
4 Rivet Member
 
2015 30' International
FREDERICK , Maryland
Join Date: Jan 2014
Posts: 326
Fill and drain times for fresh water tank

Just prepping for 2015 30' for the upcoming season. I know the fresh water tank is huge (54 gallons), but should it take 2 hours to drain? The trailer is level, I even left a faucet open, and the valve is open all the way but it is taking 2 hours to drain completely, which makes cleaning/sanitizing the tank a time consuming project.
Is this about normal?

It took me 17 minutes to fill. Maybe I am just too focused on time - oh well, used the time to silicone the window gaskets, check out all the awnings, prep the generators, etc.......
Doc Foster is online now   Reply With Quote
Old 04-30-2015, 07:58 AM   #16
Rivet Master
 
urnmor's Avatar
 
2012 25' Flying Cloud
Berlin , Maryland
Join Date: Jun 2011
Posts: 1,436
How do you add the bleach? Do you pour it in the fresh water tank hole and let the water from the hose carry it through the system?

Thanks
urnmor is offline   Reply With Quote
Old 04-30-2015, 08:18 AM   #17
Rivet Master
 
chaseav's Avatar
 
2015 25' FB International
Join Date: Nov 2014
Posts: 556
Quote:
Originally Posted by urnmor View Post
How do you add the bleach? Do you pour it in the fresh water tank hole and let the water from the hose carry it through the system?

Thanks

No other way to do it that I'm aware of. You should probably premix the bleach with some water (in a bucket or something) then dump it in.
chaseav is offline   Reply With Quote
Old 04-30-2015, 08:18 AM   #18
retired USA/USAF

 
2001 30' Excella
Somerset , New Jersey
Join Date: Jan 2009
Posts: 2,369
There's not much different you can do if sanitizing at the beginning of the season. I do it once or twice during the camping season. What I do is before leaving the last campsite to head for home I put the bleach solution into the fresh water tank through the filling tube. The tank would be partially filled by this time and on the way home it gets to slosh around thoroughly. Once home I open the drain and let it drain on the ground. It's just fresh water with a very diluted bleach solution so it won't do any harm.
__________________
Roger in NJ

" Democracy is the worst form of government. Except for all the rest"
Winston Churchill 1948

TAC - NJ 18

polarlyse is offline   Reply With Quote
Old 04-30-2015, 09:17 AM   #19
Rivet Master
 
TinShack's Avatar

 
2005 28' Safari S/O
Paradise , California
Join Date: Jul 2006
Posts: 3,444
Images: 28
Quote:
Originally Posted by Doc Foster View Post
Just prepping for 2015 30' for the upcoming season. I know the fresh water tank is huge (54 gallons), but should it take 2 hours to drain? The trailer is level, I even left a faucet open, and the valve is open all the way but it is taking 2 hours to drain completely, which makes cleaning/sanitizing the tank a time consuming project.
Is this about normal?

It took me 17 minutes to fill. Maybe I am just too focused on time - oh well, used the time to silicone the window gaskets, check out all the awnings, prep the generators, etc.......
If you are draining using the tank's petcock valve it will take a long time. There should be another drain that uses the pump and is much faster. Not sure where the valve is located on your 2015 but probably near the hot water heater bypass. Look under your trailer to see where a piece of Pex tubing goes through the bellypan and the valve should be above that. When you locate it, turn on your water pump and open the valve to pump out the water.
__________________
Steve
"THE OLDER I GET, THE BETTER I WAS"
TinShack is offline   Reply With Quote
Old 04-30-2015, 10:00 AM   #20
Moderator
 
moosetags's Avatar

 
2015 25' FB Flying Cloud
2012 23' FB Flying Cloud
2005 25' Safari
Santa Rosa Beach , Florida
Join Date: Jul 2006
Posts: 11,727
Images: 5
Draining the fresh water tank using only the little petcock is a slow process. To speed things up, I usually turn the pump on and turn on the outside shower head cold water spigot and let it run out on the ground also.

Brian
__________________

__________________
SuEllyn & Brian McCabe
WBCCI #3628 -- AIR #14872 -- TAC #FL-7
2015 FC 25' FB (Lucy) with HAHA
2018 Silverado 2500 (Lillian)
moosetags is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sanitizing Fresh Water, Making a Bomb? HeadWest Fresh Water Systems 11 06-25-2013 12:07 PM
Sanitizing the water system zimbop Fresh Water Systems 13 02-11-2013 09:36 AM
Sanitizing Water System bike_addict LP Gas, Piping, Tanks & Regulators 27 10-12-2011 05:47 PM
City Water Connection to Potable Tank? Motoman Fresh Water Systems 2 12-19-2006 07:22 AM
Potable Water Tank Lee Pace Fresh Water Systems 4 09-01-2004 08:44 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 05:57 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.