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10-22-2006, 12:55 PM
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#1
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1 Rivet Member 
1972 27' Overlander
Belgrade
, Montana
Join Date: Apr 2006
Posts: 18
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Not Dumping?
Can I just pour anitfreeze into the black tank instead of having to drive the TT across town to a dump site? The tank doesn't even read 1/4 full.
__________________
Steve
Belgrade, MT.
steven@potratz.net
'72 International Overlander - 27' of happiness
WBICC #4453
Member-at-Large cause I don't know any better
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10-22-2006, 01:10 PM
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#2
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Rivet Master 
1974 27' Overlander
1954 26' Romany Cruiser
1960 26' Overlander
Rockingham County
, New Hampshire
Join Date: Sep 2004
Posts: 4,410
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Quote:
Originally Posted by snpotratz
Can I just pour anitfreeze into the black tank instead of having to drive the TT across town to a dump site? The tank doesn't even read 1/4 full.
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Personaly, I don't like leaving that goop in there....
__________________
'74 Overlander (T-O-Bee)
'46 Spartan Manor (Rosie)
'54 Cruiser (Bogart)
'60 Overlander (Hoagy)
2007 GMC Sierra 2500 HD Duramax
WBCCI 1754 - AIR # 6281
www.balrgn.com
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10-22-2006, 01:21 PM
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#3
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Naysayer

1968 24' Tradewind
Russellville
, earth
Join Date: Jun 2005
Posts: 4,989
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I have been giving a similar problem some thought. Should I keep some antifreeze in the tanks during winter use, and how much? If I were storing it over the winter howerver, I would drain it for sure. If it aint in the tank it cant freeze there, and a freeze could turn into a nasty scenerio.
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10-22-2006, 02:46 PM
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#4
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Rivet Master 
1967 26' Overlander
Huntsville
, Alabama
Join Date: Dec 2003
Posts: 3,046
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My solution
Quote:
Originally Posted by Gen Disarray
I have been giving a similar problem some thought...If I were storing it over the winter howerver, I would drain it for sure...
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I drain & rinse my black tank when the fresh water lines are winterized.
For occaisional Airstreaming after that, we use the modern-day equivalent of a chamber pot purchased from Wal-Mart for around $20.
FWIW, although antifreeze can be added to the tank to protect it, I worry more about the dump valve - all that crap suspended in a variety of liquids does not strike me as good for the valve's rubber parts in freezing conditions.
Tom
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10-22-2006, 02:48 PM
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#5
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Rivet Master 
1977 Argosy Minuet 6.0 Metre
1964 26' Overlander
1977 25' Tradewind
Eastern
, Washington
Join Date: Jan 2004
Posts: 865
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Quote:
Originally Posted by snpotratz
Can I just pour anitfreeze into the black tank instead of having to drive the TT across town to a dump site? The tank doesn't even read 1/4 full.
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I don't know if that is a good idea, not just because of the freeze. The breakdown of material in a black tank generates ammonia and other things that work in the deterioration the seals in the valves.
__________________
Peace
Gary
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10-22-2006, 03:25 PM
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#6
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1 Rivet Member 
1972 27' Overlander
Belgrade
, Montana
Join Date: Apr 2006
Posts: 18
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Thanks!
Well thanks for the advice all. The weather unexpectedly cleared this afternoon from the freezing fog and snow we had this morning, so I hooked up quick and dumped across town. Now I don't have to worry about it all winter.
__________________
Steve
Belgrade, MT.
steven@potratz.net
'72 International Overlander - 27' of happiness
WBICC #4453
Member-at-Large cause I don't know any better
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10-22-2006, 04:13 PM
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#7
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Rivet Master 
1994 21' Sovereign
Down on the corner...
, CT
Join Date: Jul 2004
Posts: 997
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Quote:
Originally Posted by Janet's Husband
I don't know if that is a good idea, not just because of the freeze. The breakdown of material in a black tank generates ammonia and other things that work in the deterioration the seals in the valves.
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Good advice...I never thought of the residual antifreeze in my grey tank after winterizing. I know I can do a rinse to the black tank but what about the grey? I don't think there is any way around rinsing it out now that I have anitfreeze in the traps except to drain what might be in there from the dump valve. I did put window wash in the toilet...I'm wondering if it would be beneficial to pour the rest of the gallon in the back tank to protect and lubricate the seals. What do you think and is it really something to worry about??
__________________
Ann & Eric
WBCCI 6274
TAC CT-4
NEU
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10-22-2006, 05:31 PM
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#8
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Rivet Master 

Airstream - Other
2016 Interstate Grand Tour Ext
Bosque Farms
, New Mexico
Join Date: Jan 2004
Posts: 7,096
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Ah, keep in mind that RV antifreeze, if diluted (even with black water), will lose much of its protective capacity. Read the label carefully; you may wind up having to put a LOT of antifreeze in there in order to keep it from freezing.

Lynn
__________________
ACI Big Red Number 21043
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10-22-2006, 05:45 PM
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#9
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Rivet Master 
Massachusetts
Join Date: Oct 2002
Location: 1964 17' Bambi II
Posts: 4,282
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Quote:
Originally Posted by enduroryda
Good advice...I never thought of the residual antifreeze in my grey tank after winterizing. I know I can do a rinse to the black tank but what about the grey? I don't think there is any way around rinsing it out now that I have anitfreeze in the traps except to drain what might be in there from the dump valve. I did put window wash in the toilet...I'm wondering if it would be beneficial to pour the rest of the gallon in the back tank to protect and lubricate the seals. What do you think and is it really something to worry about??
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I drain both tanks before I winterize. Water freezes and you don't want it anywhere in your system. After I winterize, I drain the gray tank one last time to get rid of the last bit of water dislodged from the traps when I pour AF in them.
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WBCCI Region One
Attitude is the only difference between ordeal and adventure
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10-22-2006, 05:57 PM
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#10
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Retired.
Currently Looking...
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, At Large
Join Date: Jun 2003
Posts: 21,276
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Quote:
Originally Posted by Gen Disarray
I have been giving a similar problem some thought. Should I keep some antifreeze in the tanks during winter use, and how much? If I were storing it over the winter howerver, I would drain it for sure. If it aint in the tank it cant freeze there, and a freeze could turn into a nasty scenerio.
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If you drink enough alcohol, you theoretically won't need antifreeze in your black tank...
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Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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10-22-2006, 05:59 PM
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#11
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Site Team

2002 25' Safari
Dewey
, Arizona
Join Date: Mar 2005
Posts: 15,748
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Terry,
Are you willing to test that theory?
__________________
Richard
Wally Byam Airstream Club 7513
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10-22-2006, 06:11 PM
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#12
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Retired.
Currently Looking...
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, At Large
Join Date: Jun 2003
Posts: 21,276
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Quote:
Originally Posted by azflycaster
Terry,
Are you willing to test that theory?
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I would, but I live too far South for any tests to be meaningful. I will have to let someone in a more Northern clime perform the test...  If anyone tries this, make sure you use copious amounts of Bacardi 151 rum-- Then even if it doesn't work, you won't care.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
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10-23-2006, 09:17 PM
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#13
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1 Rivet Member 
1972 27' Overlander
Belgrade
, Montana
Join Date: Apr 2006
Posts: 18
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Quote:
Originally Posted by overlander63
I would, but I live too far South for any tests to be meaningful. I will have to let someone in a more Northern clime perform the test...  If anyone tries this, make sure you use copious amounts of Bacardi 151 rum-- Then even if it doesn't work, you won't care.
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You guys crack me up
__________________
Steve
Belgrade, MT.
steven@potratz.net
'72 International Overlander - 27' of happiness
WBICC #4453
Member-at-Large cause I don't know any better
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