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Old 10-29-2015, 09:54 AM   #1
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Portable electric compressor

Got my monthly flyer from harbor freight, yeah I know, harbor freight. They've got a 1.5 hp, 6 gal, 150 psi oilless electric compressor on sale for 99 bucks. I'm getting ready for my first rv trip and was wondering if something like this could be useful. Airing up the tires and blowing out the fresh water plumbing immediately come to mind. Any other uses you can think of? It weighs 37 lbs. thanks, rick
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Old 10-29-2015, 09:59 AM   #2
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A real compressor such as that one is much better than the small tankless 12VDC compressors. I carry one in the RV for airing tires quickly, winterizing the rig, and blowing up those huge water toys. I've used it many times and consider it an important piece of RV equipment.
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Old 10-29-2015, 10:02 AM   #3
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I have a small compressor that I sometimes take with me. Downside is you need 110V AC to power it. So unless you have an inverter capable of handling the load or a generator, or ready access to shore power, it's just so much extra weight. I figure I'll need it most when I'm out on the road with nothing but 12V DC available, so I'm planning to buy myself a nice Viair 12V compressor some day so I'm covered no matter what.
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Old 10-29-2015, 10:18 AM   #4
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Originally Posted by Rgrigutis View Post
Got my monthly flyer from harbor freight, yeah I know, harbor freight. They've got a 1.5 hp, 6 gal, 150 psi oilless electric compressor on sale for 99 bucks. I'm getting ready for my first rv trip and was wondering if something like this could be useful. Airing up the tires and blowing out the fresh water plumbing immediately come to mind. Any other uses you can think of? It weighs 37 lbs. thanks, rick
If you have a small shop that's an excellent unit. But a bit big for normal homeowner use. And way too heavy to be considered "portable'.

I don't have the new flyer yet, but see if they have a 3 or 4 gallon for about half the price.

All decent compressors will build to 150PSI. You're biggest concern is CFM or Cubic Feet per Minute. The bigger the number, the more air that can be delivered and therefore the higher the price.

A good homeowner unit needs to be around 1-2 CFM. That'll handle anything short of spray painting. Tires, suspension air bags, blowing out the lines for winterizing...

Be sure to include a regulator! The plumbing in an RV won't take well to 150PSI. 20 PSI is much safer.
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Old 10-29-2015, 12:56 PM   #5
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I too use the tankless 12VDC portable air compressor for all of my RV and Truck needs.

Most of my camping is off road and i can sit the tankless 150pise 12VDC compressor on the dropped truck tail gate and connect up to the trailer battery bank with ease. Then I can use the provided long air hose to walk around all of trailer and truck tires.

I can also provide air to the trailer city water port using an AIR ADAPTER when blowing out the air lines after draining all of the low water points on the trailer.

The tankless type air compressor are slower in providing maximum pressure so this fits right into using them for blowing out water lines... Plenty of time to start it up and then walk inside and open all of the water spigots to drain out the trapped water down the sinks.

Been using my tankless 12VDC air compressor from way back in the AZ JEEP DAYS and it stores in its handy carry case under the rear seat of my truck.



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Old 10-29-2015, 01:19 PM   #6
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Can a pump that size inflate suspension air bags?
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Old 10-29-2015, 01:30 PM   #7
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Can a pump that size inflate suspension air bags?
I don't see why not. They don't get up to crazy pressures or anything, and from that standpoint, it's no different than a tire.
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Old 10-29-2015, 01:31 PM   #8
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TWP723 - if that was directed at me yes... This has a 150PSI capability. The problem with the tankless type is that they are slow to bring up that much air pressure.

My air bags says to keep at least 15-20 lbs in them them until you are loaded down. Then you will want to use between 70-90lbs on my model of air bag...

I moved all of that over to my newer F150 truck and found out I didn't need it anymore so I just kept 15lbs of air in them...

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Old 10-29-2015, 02:48 PM   #9
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Having a compressor with you is great. However, I would not carry something that large. I have a Slime Brand 12 volt compressor, one of the larger ones. It says it will fill a tire in 3 minutes. Works great, not quite as nice as my big 120V tank compressor I leave at home. It travels nicely, easy to handle, does not take up to much room. cost was about $60 as I recall. I have never tried using it to blow out my lines, would be interesting thing to try some time.
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Old 10-29-2015, 02:51 PM   #10
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Yeah..I hate having to carry my old tanked compressor that I used for my pneumatic tools. It's heavy and cumbersome.
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