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Old 10-12-2014, 07:13 PM   #29
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With the exception of using coach air pressure, be sure to install and use a water separator in-line to remove moisture from the compressed air. Don't do it and you end up with a couple ounces of moisture/water in your tires in a few years. That moisture in the compressed air is the main cause of wide pressure swings in hot weather.
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Old 10-12-2014, 07:22 PM   #30
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Quote:
Originally Posted by bcbounders View Post
I have a new Viair compressor on order from Amazon:

Amazon.com: Viair 40047 400P-RV Automatic Portable Compressor Kit: Automotive

It's a little pricy, but from everything I've seen online, it gets very good reviews, comes with everything you need to inflate high-pressure RV tires, and looks very compact. I can report back with more info after I get to use it this weekend (it's scheduled to arrive later this week)!

if the cost is to high you can buy just a viair pump just its self for 160$ and install the fittings your self

i have 2 of them to make 4 CFM and i have one higher end unit that makes 4 CFM alone installed in the side of the RV
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Old 10-12-2014, 08:06 PM   #31
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learning a lot here... kinda like an oil air compressor with 150psi, min 4 cfm, on 110v electric. anyone has a recommendation? (oops, don't mean to hijack )
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Old 10-13-2014, 10:11 AM   #32
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Thank you all for all of the great information. We ended up with a decent compressor and checked all of the tires to be sure everything was correct and found a couple of lbs low on rear and tag. Gave them each a little touch and had the coach out for the weekend and it drove like a Porsche. Loved it. Thank you, again for all of the great information. Don't know what we would do without all of the great knowledge out there. Keep it up!
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Old 10-18-2014, 11:17 AM   #33
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How to get dry air for your tires

Quote:
Originally Posted by Ray,IN View Post
With the exception of using coach air pressure, be sure to install and use a water separator in-line to remove moisture from the compressed air. Don't do it and you end up with a couple ounces of moisture/water in your tires in a few years. That moisture in the compressed air is the main cause of wide pressure swings in hot weather.
I address the "wet air" by draining the separator plus using this dryer I made.
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Old 10-18-2014, 11:52 AM   #34
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Originally Posted by bcbounders View Post
I have a new Viair compressor on order from Amazon:

Amazon.com: Viair 40047 400P-RV Automatic Portable Compressor Kit: Automotive

It's a little pricy, but from everything I've seen online, it gets very good reviews, comes with everything you need to inflate high-pressure RV tires, and looks very compact. I can report back with more info after I get to use it this weekend (it's scheduled to arrive later this week)!
there is another unit without wording "-RV", don't know what the differences are http://www.amazon.com/Viair-40043-VI...r+400p+150+psi
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Old 10-18-2014, 08:27 PM   #35
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there is another unit without wording "-RV", don't know what the differences are Amazon.com: VIAIR 400P Portable Compressor: Automotive
@CountryFit,

Looks like the difference is that the less-expensive 400P unit is missing the following items that are included on the 400P-RV:
  • Extra 30' of coil hose
  • Tire inflation gun
  • 45-Degree Extended Reach Chuck (For Dual Rear Wheels)
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Old 10-18-2014, 10:02 PM   #36
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@CountryFit,

Looks like the difference is that the less-expensive 400P unit is missing the following items that are included on the 400P-RV:
  • Extra 30' of coil hose
  • Tire inflation gun
  • 45-Degree Extended Reach Chuck (For Dual Rear Wheels)
just noticed from 400p spec that its inline gauge is to 100psi. does your 400p-rv come with the same gauge?
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Old 10-19-2014, 12:56 AM   #37
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just noticed from 400p spec that its inline gauge is to 100psi. does your 400p-rv come with the same gauge?
No... the 400P-RV has an inline gauge that reads up to 130psi, so that's another difference.
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