RV Anti freeze for drains? - The HuntingPA.com Outdoor Community
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post #1 of 23 (permalink) Old 03-11-2015, 02:24 AM Thread Starter
The Man
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RV Anti freeze for drains?

Anyone ever use this stuff? I bought a jug of it this year and poured in my sink traps along with commode. I still left my electric heat on low all winter until 3 weeks ago. I just popped In for awhile and thought with my electric bill being 125.00 I would turn heat off and just dump some more of this stuff in commode bowl and tank. I went over last sat. and found my commode and tank frozen, I know a few days earlier it was single digits but this stuff don't work. Next time I wont be cheap and buy actual anti freeze. Lesson learned!
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post #2 of 23 (permalink) Old 03-11-2015, 03:21 AM
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Re: RV Anti freeze for drains?

I used it for a lot of years in my current house living alone, traveling a lot, no heat on at all when I was gone. Also used it for several years in a 2nd uninhabited house I used only for storage. The more diluted the less the protection. In other words you don't take a full toilet tank and pour some in. In a toilet you shut off the supply, flush it to drain the tank, plunge the bowl, then I put a cup in tank and bowl. One cup down each drain/trap. Shut off the well pump and drain all the fresh water supply lines.

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post #3 of 23 (permalink) Old 03-11-2015, 03:21 AM
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Re: RV Anti freeze for drains?

I use -30 auto washer fluid in the traps, but we empty the toilet bowl and tank. We dry the tank and pour about a quart in the bowl. Never had a problem. We have had below Zero temps off and on since late November. Never any heat on. I was up last month and it was -9 inside!

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post #4 of 23 (permalink) Old 03-11-2015, 10:06 AM
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Re: RV Anti freeze for drains?

We use it at our camp. Like griz said, it's design to be used at full strength. We turn the power of when nobody there so there's no heat. I've found it slushy a time or two and frozen once, but that was when the person up before me had not plunged the water out of the bowl. We use it because it's suppose to be better for the septic system the automotive anti-freeze.
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post #5 of 23 (permalink) Old 03-11-2015, 10:12 AM
The Man
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Re: RV Anti freeze for drains?

Not sure whats cheaper but we use full strength automotive anti freeze at our Camp in toilets, tanks and drains.

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post #6 of 23 (permalink) Old 03-11-2015, 12:18 PM
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Re: RV Anti freeze for drains?

Auto antifreeze is bad for environment and septic /sewer systems Highly poisonous. RV antifreeze full strength is what you need and get all water out of the bowls, tanks and traps first. Safe alternative and it works

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post #7 of 23 (permalink) Old 03-11-2015, 12:38 PM
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Re: RV Anti freeze for drains?

Had my camp for 37 years. Used nothing but windshield wiper antifreeze. After your water is off flush the toilet to get most of the water out then pour in the antifreeze.Never a problem maybe some slush but that goes away fast. Its cheaper and you can get it anyplace.
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post #8 of 23 (permalink) Old 03-11-2015, 12:43 PM
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Re: RV Anti freeze for drains?

Been using RV antifreeze ever since we had indoor plumbing at camp, so that'd be since 1984. No problems yet and it often goes to minus 20 or more at camp. I use one gallon per treatment when I winterize camp.

Pour some in both sink traps and shower drain trap. When toilet is all but empty, run some into toilet trap via holding open the flush flapper and letting it run thru the trap into the bowl. Then fill the bowl to the normal water level and mix. Also let a few inches in the toilet tank.

If the traps/toilet are empty, you'll get some residual "sewer gas" in the building from the septic tank. Most automotive anti-freeze may be harmful to the bacteria in the septic tank and may also stain the toilet bowl. RV does neither.

No problems with anything freezing/breaking in all that time, although sometimes there is a bit of slush in the toilet bowl. Slush does not break china, solid expanding ice does.

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post #9 of 23 (permalink) Old 03-11-2015, 02:26 PM
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Re: RV Anti freeze for drains?

I used to use only part of the gallon bottle but the toilet cracked one year, so now, I dump the entire gallon in. As said before, don't dilute it. Pour that whole thing in there. I don't leave any heat on at my place and below zero temps are the norm there in winter.

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post #10 of 23 (permalink) Old 03-11-2015, 03:31 PM
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Re: RV Anti freeze for drains?

I drain the water lines and use RV antifreeze in the traps and toilet at camp, been doing it about ten years works well.

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