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10-10-2020, 11:06 AM
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#1
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Member
Join Date: Apr 2019
Location: Gahanna
Posts: 38
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winterizing holding tanks
Getting ready to do the winterizing. What does everyone do to or put into their tanks for the winter?
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10-10-2020, 12:11 PM
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#2
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Senior Member
Join Date: Nov 2017
Location: Mico, TX
Posts: 7,447
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If you empty the holding tanks why would you put anything in them? If there are small amounts of residual flud, doubt the volume would be sufficient to harm a tank if the fluid freezes. I put anti-freeze into my pee traps so a bit extra would get into your tanks if that makes you more comfortable.
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wiredgeorge Mico TX
2006 F350 CC 4WD 6.0L
2002 Keystone Cougar 278
2006 GL1800 Roadsmith Trike
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10-10-2020, 12:31 PM
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#3
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Senior Member
Join Date: Jan 2013
Location: Indiana
Posts: 2,705
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When winterizing, the first thing I do is drain all the tanks completely. Because I can do this at home, I usually leave the valves open for an hour or so before I do anything else.
Then when pumping the pink stuff through the faucets, toilet, and shower, the first flow of clear water followed by pink stuff will go into the holding tanks, and continue to drip out... granted diluted. But it doesn't matter, the tanks are empty already.
My fresh water tank, I drain it completely, until it quits draining. I do leave the valve open and take a small piece of cloth (anything will do) and wrap it around the drain held on with a rubber band, simply to keep anything, like bugs, from crawling up the pipe. It doesn't matter if there is a couple gallons of water left in the fresh water tank that never drains. There is now so much space empty in the tanks, any ice freezing has plenty of room for expansion.
If tanks are empty, there nothing else you need to do with them.
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2019 Montana High Country 375FL
2014 Chevy Duramax HD 6.6 - 3500 Diesel Dully Long bed Crew Cab
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10-14-2020, 04:51 PM
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#4
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Senior Member
Join Date: May 2019
Location: NE Ohio
Posts: 503
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Empty the tanks, air doesn't freeze.
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2018 Cougar 26RBS
2016 Chevrolet 3500DRW D/A
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10-14-2020, 07:27 PM
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#5
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Senior Member
Join Date: Mar 2014
Location: Las Cruces
Posts: 4,665
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The concern with freezing in the winter is due to the expansion of the ice. That’s bad news in a water line, especially metal lines like on the faucet and also in the toilet where the lines connect, it’ll bust out the porcelain. Empty holding tanks with t get damaged, even if there is a little water left in them because there’s plenty of room for expansion.
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Brent
2013 Alpine 3500RE
2019 Silverado 2500HD Duramax
U.S. Air Force Retired (25 yrs)
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10-15-2020, 07:36 AM
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#6
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Senior Member
Join Date: Apr 2020
Location: Canton
Posts: 289
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Nothing except a little antifreeze as I fill traps
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Eddy
2019 GMC Sierra 2500HD 6.0L
2020 Cougar 32BHS
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10-16-2020, 07:07 AM
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#7
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Senior Member
Join Date: Feb 2013
Location: Lacey, WA
Posts: 502
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I drain the tanks then pour a gallon of cheap vegetable oil in each tank. Was told this keeps the rubber on the drain gate valves from drying out.
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Lee & Christie
1970 F250 Highboy 4x4
2013 Cougar 21RBSWE
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10-16-2020, 07:35 AM
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#8
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,978
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Quote:
Originally Posted by Lee
I drain the tanks then pour a gallon of cheap vegetable oil in each tank. Was told this keeps the rubber on the drain gate valves from drying out.
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Add a little vinegar and some Italian herb spice blend and next spring, dump it over the dandelions.......
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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10-16-2020, 12:19 PM
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#9
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Senior Member
Join Date: Oct 2016
Location: Commerce Twp, Mi
Posts: 1,002
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TOM
2011 Chevy Silverado
1500, HD Tow Package
2017 Keystone Hideout 177LHS Carlisle Radial HDs
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10-16-2020, 01:25 PM
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#10
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,978
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Quote:
Originally Posted by CrazyCain
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There's a long, LONG history of threads discussing the use of EEVO to lube the seals on holding tanks. I suppose it was about 7 or 8 years ago the discussion of adding vinegar to the tank to supplement the EEVO started. Since then, every once in a while, the topic surfaces....
It's always good to have some Italian spice, now as for putting it in the holding tank, purely a personal preference LOL
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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10-16-2020, 02:40 PM
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#11
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Site Team
Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,741
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It's always worked well at lubricating my internal plumbing.
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Marshall
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
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