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11-04-2019, 12:48 AM
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#1
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Senior Member
Join Date: May 2017
Location: Corvallis
Posts: 103
Oregon
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Choice of RV Antifreeze
Going to winterize my Kodiak Ultra myself this year and wondering if there is really any difference in the various RV brands out there. The Walmart one town over has the Absolute Zero brand for $3.60 /gal which seems to be a good price (compared to online brands for sale). Anyone used this brand with the desired results? Are there other brands which some of you feel are better or is RV antifreeze pretty much all the same?
Thanks,
Dan
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11-04-2019, 03:39 AM
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#2
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Senior Member
Join Date: Jan 2018
Location: Beaver Dam
Posts: 890
Wisconsin
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Some of the cheaper brands have alcohol in them. I had a bad experience with one a couple of years ago. It took a lot of extra flushing to get the bad taste out of my water supply. I recommend you skip any with alcohol in them. Otherwise any -50* F RV anti-freeze is good for the lower US states.
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Paul Bristol
Dutchman Kodiak Cub KD176RD 2018
Nissan Pathfinder 2015
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11-09-2019, 10:01 PM
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#3
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Senior Member
Join Date: Jun 2016
Location: Capron
Posts: 413
Illinois
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I would just find the least expensive and get 4 gallons to start with. You never know how much the system takes until you do it, and better to have more than not enough. You can always use what is left over next year.
Then come spring time when they want to get rid of the overstock, buy a few for next season. I didn't have to buy any this year, had enough from last year when I bought then for $1.50 a gallon. Bought a case of them, and used 2 gallons for my laser cooling system too.
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11-10-2019, 04:58 AM
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#4
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Senior Member
Join Date: May 2017
Location: Corvallis
Posts: 103
Oregon
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Went with the Absolute Zero - met all the criteria. Used four gallons my first time doing the dewinterizing myself. Probably take four to do it next year.
Thanks for the replies.
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11-11-2019, 09:00 PM
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#5
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Senior Member
Join Date: Jul 2014
Location: Dalzell
Posts: 714
South Carolina
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Four gallons seems like a lot! If the water heater is bypassed, and you feed the pump directly, with the fresh tank cut off, then all you have to do is run through the pipes until each faucet runs pink. Let some pink flow into the drain, for the trap. That only takes me about one gallon, maybe 1.5
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11-11-2019, 09:05 PM
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#6
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Senior Member
Join Date: Dec 2016
Location: Delaware
Posts: 227
Ohio
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Quote:
Originally Posted by acdii
I would just find the least expensive and get 4 gallons to start with. You never know how much the system takes until you do it, and better to have more than not enough. You can always use what is left over next year.
Then come spring time when they want to get rid of the overstock, buy a few for next season. I didn't have to buy any this year, had enough from last year when I bought then for $1.50 a gallon. Bought a case of them, and used 2 gallons for my laser cooling system too.
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Laser cooling, eh? Yeah, that's what caught my eye! My laser is inside ... so I've no need to antifreeze the chiller, but it's worth passing on the idea to others. Better than standard antifreeze because of the lack of alcohol?
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2017 CTS16FB
2019 Nissan NV
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11-11-2019, 09:11 PM
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#7
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Senior Member
Join Date: Jun 2016
Location: Capron
Posts: 413
Illinois
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Quote:
Originally Posted by PamW
Laser cooling, eh? Yeah, that's what caught my eye! My laser is inside ... so I've no need to antifreeze the chiller, but it's worth passing on the idea to others. Better than standard antifreeze because of the lack of alcohol?
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More for the antimicrobial properties than for temperature. I use a CW5200 so it is pretty much a sealed system. It holds roughly 3 gallons, so have a 50/50 mix with distilled water and the pink color helps to show the flow is working and the tube is full. It keeps the tube at 16*C.
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11-11-2019, 11:20 PM
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#8
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Senior Member
Join Date: Jan 2018
Location: Beaver Dam
Posts: 890
Wisconsin
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Wet tank bottoms
Quote:
Originally Posted by MartyG
Four gallons seems like a lot! If the water heater is bypassed, and you feed the pump directly, with the fresh tank cut off, then all you have to do is run through the pipes until each faucet runs pink. Let some pink flow into the drain, for the trap. That only takes me about one gallon, maybe 1.5
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There is a plausible argument to keep the bottom of the black water tank wet to prevent solids build up. Gray tanks may benefit as well.
I have not seen solid evidence on this yet.
I buy it by the case, as I winter camp and repeat winterize. I am considering going to blow out to simplify rewetting and flushing the system in cold weather.
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Paul Bristol
Dutchman Kodiak Cub KD176RD 2018
Nissan Pathfinder 2015
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11-12-2019, 01:48 AM
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#9
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Senior Member
Join Date: May 2017
Location: Corvallis
Posts: 103
Oregon
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Quote:
Originally Posted by MartyG
Four gallons seems like a lot! If the water heater is bypassed, and you feed the pump directly, with the fresh tank cut off, then all you have to do is run through the pipes until each faucet runs pink. Let some pink flow into the drain, for the trap. That only takes me about one gallon, maybe 1.5
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I made sure it was running well out of all the faucets. Also dumped a decent amount down the traps and toilet. Also, the black water tank flush port got some pumped into it.
My last sentence in my post above should have read, “It will likely take around three gallons (or less) next year.”
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