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Open Roads Forum  >  Tech Issues

 > What's the best way to get RV anti-freeze out of system.

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Yosemite Sam1

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Posted: 06/14/21 12:21pm Link  |  Quote  |  Print  |  Notify Moderator

I turned on all the faucets and water outlets after filling up the fresh water tank and then run the water pump.

I also connect the municipal water supply line.

Killed a few grasses on my lawn with some spillage.[emoticon]

Too much work with anti-freeze for this lazy as$ while compressed air is such a simple process and worth the investment in entry-level Craftsman air compressor.

Sjm9911

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Posted: 06/14/21 12:24pm Link  |  Quote  |  Print  |  Notify Moderator

I go faucet by faucet, and then do the bottem drains last. I do not open them all at once. I start closest to the pump and work out.


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ferndaleflyer

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Posted: 06/14/21 12:52pm Link  |  Quote  |  Print  |  Notify Moderator

I don't winterize, just keep heat on and hot water heater on

pianotuna

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Posted: 06/14/21 12:56pm Link  |  Quote  |  Print  |  Notify Moderator

Sjm9911 wrote:

I go faucet by faucet, and then do the bottem drains last. I do not open them all at once. I start closest to the pump and work out.


Interesting. I do the opposite order starting farthest from the pump, but open only one at a time.

I blow

install pink

blow again saving what I can.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, soon to have SiO2 batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

Sjm9911

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Posted: 06/14/21 02:43pm Link  |  Quote  |  Print  |  Notify Moderator

I think its the one by one that does it. That way it clears that line, and the back pressure prevents the antifreeze from moving around in the system.

philh

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Posted: 06/14/21 03:54pm Link  |  Quote  |  Print  |  Notify Moderator

Mine trapped pink stuff leading to hot water tank. That trapped pink stuff contaminated the system until it finally flushed it out. In retrospect, I should have left the hot water tank drain valve out and flushed that trapped pink stuff.

docsouce

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Posted: 06/14/21 04:28pm Link  |  Quote  |  Print  |  Notify Moderator

Is there an on board water filter that might be holding some anti freeze? Just a thought.....


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LouLawrence

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Posted: 06/14/21 06:20pm Link  |  Quote  |  Print  |  Notify Moderator

Don't use anti-freeze next time. Drain the fresh water tank, and black and grey tanks. Use an air compressor to blow the fresh water lines and then just throw a bit of anti-freeze in the P-traps to get rid of or dilute the water enough to prevent freezing. Next year you are good to go by just filling the tanks and heading down the road.

JimK-NY

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Posted: 06/14/21 07:22pm Link  |  Quote  |  Print  |  Notify Moderator

Something is wrong. It has never taken me more than a few gallons of water and a couple of minutes to completely remove the antifreeze. Best guess is there is antifreeze in the hot water or main water tank. Any antifreeze in the lines or faucets should rinse out quickly.

Sjm9911

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Posted: 06/14/21 07:44pm Link  |  Quote  |  Print  |  Notify Moderator

LouLawrence wrote:

Don't use anti-freeze next time. Drain the fresh water tank, and black and grey tanks. Use an air compressor to blow the fresh water lines and then just throw a bit of anti-freeze in the P-traps to get rid of or dilute the water enough to prevent freezing. Next year you are good to go by just filling the tanks and heading down the road.

I had another guy sware by this , untill his water pump broke. It depends on the climate your in. And while blowing out will work 90 percent of the time, its the other 10 percent that gets ya.

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