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Old 10-18-2016, 02:09 PM   #1
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Antifreeze or Blow Lines

Hello all, for the last 3 years I have only blown my lines on our camper(Indiana). I haven't had any issues and hit all of the faucets/shower heads/etc.

Do you all use antifreeze or only blow the lines out? Or both?

Disadvantages of only blowing lines out?
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Old 10-18-2016, 02:31 PM   #2
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The main issue I see with blowing the lines is you don't get antifreeze into the P-traps or a little into the grey/black tanks to drain down to the gate valves. You could solve this by pouring some AF into the sinks, toilet, shower.

I use the antifreeze method.
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Old 10-18-2016, 05:13 PM   #3
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I use both methods, I was amazed at how much water was in the lines. Mainly use antifreeze in the traps and toilet.
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Old 10-18-2016, 07:27 PM   #4
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X2 on dual process. I do both. Incidentally I've had the dealership tell me twice now blowing out the lines voids the warranty. I could see if the pressure was too high it could damage the fittings, but I have a wall regulator on my compressor and run low <10 psi to bleed the lines.


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Old 10-18-2016, 08:06 PM   #5
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I blow the lines and put antifreeze in the drains.
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Old 10-18-2016, 08:23 PM   #6
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Blow out the lines, pump antifreeze, dump in traps and black and grey tanks. Put olive oil in toilet to keep rubber gasket soft and it will no evaporate.
If the rv has pex lines, they are good for over 120psi air pressure including the connectors.

Quote:
The pressure with water cannot exceed the following
pipe listings.
73.4F (23C) at 160 psi
180F (82.2C) at 100 psi
200F (93.3C) at 80 psi
Note:
The pressure with air must
not exceed 120 psi
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Old 10-19-2016, 08:29 AM   #7
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Quote:
Originally Posted by DavisK View Post
I blow the lines and put antifreeze in the drains.
X2, have done it this way on all of our trailers and have only had one issue of a shower head freezing and cracked but that was my fault. I forgot to make sure it was drained. I also pour antifreeze in the toilet bowl for the winter and haven't had any issues with dry seals.
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Old 10-21-2016, 06:39 PM   #8
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Thanks all...I'll continue to "do my thing". Olive oil is new to me, but makes sense. I'll be doing that this year.
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Old 10-22-2016, 06:48 AM   #9
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This my first unit and my first time winterizing it I did both and I put vaseline on my oring. I'll find out next spring if I did it right or not.
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Old 10-22-2016, 07:44 AM   #10
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If those pex lines and connectors are suppose to with stand 120#, I wonder why we are bothering with an inline pressure regulator?
If pex is any thing like regular plastic I think it might become brittle with age. (just my opinion)

For you guys that are putting some type of lubricant on the seals and blade in the toilet---I would not use something that is petroleum based. Rubber doesn't like that stuff.
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