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04-28-2014, 07:26 AM
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#1
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Member
Monaco Owners Club
Join Date: Apr 2014
Posts: 47
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Using coach air to blow out water system
Have searched here and google to find out if anyone has used their onboard air to winterize. My new to me 2004 Monaco Dynasty has a fitting for air but the manual only talks about using it to blow up toys. I've found a adapter to attach an air line to the water system and would think you could use a regulator on to bring the pressure down from 120 to 30-40 psi. Guess question is if anyone else has ever done this.
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04-28-2014, 07:40 AM
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#2
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Senior Member
Monaco Owners Club
Join Date: Jan 2008
Location: Olympia, Wa
Posts: 2,772
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Have not use coach air but see no reason one could not, but make sure it is regulated to the 40# area.
LEN
__________________
2004 Clss C 31' Winnebgo
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04-28-2014, 07:47 AM
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#3
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Senior Member
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,587
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Quote:
Originally Posted by Procyon
Have searched here and google to find out if anyone has used their onboard air to winterize. My new to me 2004 Monaco Dynasty has a fitting for air but the manual only talks about using it to blow up toys. I've found a adapter to attach an air line to the water system and would think you could use a regulator on to bring the pressure down from 120 to 30-40 psi. Guess question is if anyone else has ever done this.
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If you have an AquaHot system, don't rely on blowing out the fresh water loop. Water can collect at a low point in the tubing. If it freezes & splits the copper, that's a $8,000-$10,000 boo boo.
Steve Ownby
Full time since '07
__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
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04-28-2014, 08:10 AM
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#4
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Senior Member
National RV Owners Club Workhorse Chassis Owner
Join Date: Apr 2011
Location: Federal Way, Wa.
Posts: 2,901
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I use MH air (self installed) for this purpose. I live in a temperate climate relatively speaking so I do not use anti freeze. I can move my MH to a plug in when faced with extended freezing weather.
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I do all my own stunts
03 Dolphin LX 6355, Workhorse W22, 8.1 vortec, 04 CR-V, Blue Ox, Brake Pro----Norm, Barb and
Doc(He's a PhD)
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04-28-2014, 08:41 AM
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#5
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Member
Monaco Owners Club
Join Date: Apr 2014
Posts: 47
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Quote:
Originally Posted by Steve Ownby
If you have an AquaHot system, don't rely on blowing out the fresh water loop. Water can collect at a low point in the tubing. If it freezes & splits the copper, that's a $8,000-$10,000 boo boo.
Steve Ownby
Full time since '07
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Thanks for the reminder. I do have the Aquahot and read in the manual that you still needed to add antifreeze after blowing out the lines along with adding a little to the black/grey tanks.
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04-29-2014, 03:22 PM
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#6
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Senior Member
Join Date: May 2004
Location: MI
Posts: 2,189
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I'd be kinda worried about blowing any contamination from the air system throw my water lines. The requirements for brakes and tires are totally different than potable water.
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04-29-2014, 03:45 PM
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#7
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Senior Member
Join Date: Sep 2010
Posts: 424
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I would not use the onboard compressor to blow out the water lines. The onboard system uses a compressor with a crankcase that is kept lubricated by engine oil. Any blowby vapor that passes the compressor's piston rings will enter the air tanks and thus the fresh water system of the RV when used to blow out the lines. I carry a small oiless compressor in a storage compartment to winterize the water system when needed.
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04-29-2014, 03:58 PM
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#8
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Senior Member
Join Date: Sep 2013
Location: Alberta - East of the Rockies, West of the Rest
Posts: 835
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A water/oil separator should eliminate any contamination
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2018 Ram 5500 with 2021 Arctic Fox 1140
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04-30-2014, 05:16 PM
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#9
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Senior Member
Fleetwood Owners Club
Join Date: Jul 2003
Location: NY
Posts: 604
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A hundred bucks spent at Harbor freight or Lowes for a nice # 150 compressor would be a good tool to have for many things ..
But , of course taking air from the Motorcoach, will work too. Be sure to regulate the pressure as others have suggested . Using the motorcoach air for tires or air tools is not as convenient as a stand alone compressor
__________________
08 Diesel Bounder 38V
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05-01-2014, 09:04 AM
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#10
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Member
Monaco Owners Club
Join Date: Apr 2014
Posts: 47
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Thanks
Appreciate all the input. Guess I'll have to weigh price and space on weather to buy a separate compressor or rig a regulator and oil/water separator system for coach air. I'll let you know which I decide.
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