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Old 10-12-2012, 06:15 PM   #1
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Winterize with Air??

I have a blow out fitting! How much air is too much air? Do I just pull up to an air hose and filler up? Do I open all valves at once or just what is the best way to do this????

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Old 10-12-2012, 06:28 PM   #2
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Limit it to 30 PSI air pressure to be safe. Open one outlet at a time until it spits no more water. Put RV anti-freeze liquid in all the traps.

Be aware that if you don't do it perfectly it may sustain freeze damage. For that reason, I always use the anti-freeze.

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Old 10-12-2012, 06:31 PM   #3
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Best to hook blow out chuck to you water pressure reduced to make sure to down blow your lines apart. Make sure to keep pressure about 45PSI, most are set to 90+PSI so you need to reduce it. That being said if your at 45PSI you can leave them all shut for awhile if needed. If you have a bigger air compresser you can blow out mutiple ones at same time, if small air compressor due one at a time.

Also make sure to run the water pump so it gets the water out of it before storage.
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Old 10-12-2012, 06:32 PM   #4
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Originally Posted by bluepill View Post
Be aware that if you don't do it perfectly it may sustain freeze damage. For that reason, I always use the anti-freeze.
Yep, same here because every year we see stories on the Internet from people that need expensive repairs on their RV due to broken pipes.
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Old 10-12-2012, 06:39 PM   #5
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First off when blowing out the water lines DO NOT use a gas station air hose to do it as they usually have a lot of moisture in it. I use an air compressor that I bought at Wal-mart made by Haus Canfield. I use the same one to fill my tires.

The next thing is to remove hot water heater drain plug and then open pressure relief valve to drain hot water heater. After it is drained I would switch the valves to bypass mode and reinstall plug. Then hookup blow out plug to fresh water (city fill) port. connect air compressor to plug. Go turn on kitchen faucet and then turn on compressor. Move the lever betweem hot and cold, go to bathroom and open faucets then turn off kitchen faucets, and go to shower and do the same. Then go to toilet and allow all water to come out. Now all the faucets and toilet should be pushing air. Leave one faucet open and go outside and turn off compresor and disconnect. Then close all faucets.

Drain the fresh water tank. Next purchase RV Antifreeze at Wal-mart (pink stuff) and put about a cup in all the traps, kitchen, bathroom and shower. Also empty water in toilet bowl and put enough antifreeze in toilet to come up about 3 inches in the bowl.

Now you are winterized the blow out method. Depending on where you live I would winterize it with Rv Antifreeze if you are not going to use it during the winter months.

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Old 10-21-2012, 09:58 AM   #6
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I was hoping this subject was active and upfront! I just bought a
Camco 36143 RV Blow Out Plug with Brass Quick Connect so I can keep the compressor connected while I open up all the valves. I do plan to go to a Rodeo in PHX in Jan and was hoping to NOT have to fill it up with anti freeze. My 79 Landau was equipped when new with an auto winterizer but it was abandoned sometime along the way :( I have added fun like an ice maker that I make sure to leave the door open so the water in the tray evaporates.

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