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Anti-Freeze in or out

sbaxter
Explorer
Explorer
Do you leave the anti-freeze in all winter, or drain it after you flush the lines?

I have watched several tutorials, and none mention draining the lines after flushing with pink until it comes out the taps.

I have also read several posts that say do not leave the AF in.

So which one is it? I was pretty laissez faire with my old 1990 fifth, but now that this is the first winter for my new Denali, I want to be overly paranoidly careful.
21 REPLIES 21

GaryWT
Explorer
Explorer
I always leave it but if you pump it through and the water is out then why not drain it. It is not like water will get in there. Might have to give it some thought over the next couple of weeks.
ME '63, DW 64, (DS 89 tents on his own, DD 92 not so much), DS 95
2013 Premier Bullet 31 BHPR 2014 F350 Crew Cab 6.2L 3.73

Ozlander
Explorer
Explorer
Jack_Diane_Freedom wrote:
I leave it in all winter and flush in spring.

X2
Ozlander

06 Yukon XL
2001 Trail-Lite 7253

Jack_Diane_Free
Explorer
Explorer
I leave it in all winter and flush in spring.

camperforlife
Explorer
Explorer
Well actually I do both. After I winterize I go back and open the low point drains and let it dump the antifreeze & re-close the drains. What ever is left in the lines stays in the lines until I sanitize in the spring. My theory is that the RV antifreeze in my area will not freeze but it does get slushy So why not let it force out any remaining water, drain it, then there is plenty of space if it does get slushy.

WyoTraveler
Explorer
Explorer
Some people just blow out lines with air, some use anti freeze, and some, being really over concerned, do it both ways. I think the confusion begins when you read about the the RVers that have their own method of doing both methods.

BarneyS
Explorer III
Explorer III
I drain mine just so it doesn't leave any "aftertaste" in the spring. I don't see any reason to leave it in there. I collect it and use it in the drains and for flushing the toilet when/if we are traveling in the winter.
Barney
2004 Sunnybrook Titan 30FKS TT
Hensley "Arrow" 1400# hitch (Sold)
Not towing now.
Former tow vehicles were 2016 Ram 2500 CTD, 2002 Ford F250, 7.3 PSD, 1997 Ram 2500 5.9 gas engine

romore
Explorer II
Explorer II
I leave it in until I flush the lines and get ready for spring.