Compressor Selection Help

**Txfivver** · 09-04-2020, 08:04 AM

Originally Posted by Fsalmy

We also have a Ryobi handheld for quick inflation of bike tires, etc. Already had a couple of 4ah Ryobi batteries and saw the inflator at HD for ~$19, so picked one up. Max PSI is 150. Have used it several times to add a few PSI to the truck or trailer tires. It has a digital gauge that is pretty accurate when double checked against the Viar gauge or a separate calibrated digital gauge I have. It does get pretty hot, though, and I suspect it might get tired trying to bring a large tire from 70 to 100 psi.

https://www.homedepot.com/b/Tools-Ai...5yc1vZc285Zm5d

I have that same RYOBI handheld and it is great for bike tires and to add a quick few pounds to car tires. For the truck and trailer I just carry the 120v pancake compressor that will fill the higher pressure tires in no time at all. I let the dually back tires down 10 psi when running empty and the pancake compressor will add it back in about 10 seconds. You can get them anywhere.

**mnsckp** · 09-09-2020, 06:20 PM

You can get a ViAir model 250C-IG P/N 25050 (12 VDC) for $184 + shipping (I guess) from Summit Racing. It goes to 150 psi, and is rated for 100% duty cycle, 0.88 cfm. It is a raw compressor but if you don't mind getting a fill hose, etc. it is a good compressor. I have used them at my work.

**Schiefswret** · 09-14-2020, 04:18 PM

Originally Posted by Raife1

Looking for help regarding which Viair compressor to get as I don't know enough about how they work. I read several threads on the site, but it didn't help as generally the PSIs they referenced where much higher than mine. I have an Grand Design Imagine XLS 21BHE, tire size is ST205/75R14 65PSI cold.

The product selection page on Viair says the 300P-RVS is perfect for towables, but then the actual product page says Class B. The Viair 89P-RVS says it is also for Class B.

So there is $100 difference between the two, but I struggle to understand the big difference or what is means practically.

So why am I asking...we picked up our trailer last weekend and then stored it for the week. We got it today and discovered it had a flat tire (nail). So we filled it up down the street from the storage place so we could get it home. I am picking up a Trailer Aid tomorrow and have a compressor at home to fill it back up. But it struck home the need for an option on the road.

Do I even need something this "big?"

Any info is appreciated.

Thank you.

I bought a portable off brand AC compressor at Lowes that goes to 115 PSI. It was about $100. If it puts air in the tires, I don't need to spend a bunch of money needlessly. My .02 cents.

**Raife1** · 09-14-2020, 08:17 PM

I bought a Ryobi set...impact drill, regular drill, and inflator. I'm only using it for top offs. If I blow a tire or get a full flat I have a spare (which I also check and top off). If that flats too, then it may take a bit longer to fill the tire. Or I wait for road side assistance to get there...

**OurNewEra** · 09-15-2020, 06:17 AM

I made a decision on the inflator and went with the Dewalt DCC020IB 20V Inflator for $99.00. Based on my anticipated use and frequency of use I could not justify the higher cost of a Viair or equivalent. I already have the Dewalt 20V tool system and this device had good reviews and tests. If I did not already have the Dewalt 20v tool system I don't think I would have selected it because the inflator comes as a bare tool, no battery or charger. That would have added about another $129 if you had to by the battery and charger. This Dewalt runs on the 20v battery or 12v. It can run on 110V if you purchase the $40+/- AC cord (AC cord not inlcuded).

**fez111** · 09-22-2020, 04:29 PM

Our tires run 80 Psi on the truck and 110 max Psi on the Solitude. I bought this one at Harbor Freight:

https://www.harborfreight.com/12v-15...sor-63184.html

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It worked/works great. Between the length of the cord and the coiled hose, by connecting to the battery in the front boot of the Solitude I can and have reached all ten tires... However, when coming home to Michigan from Florida this Easter we dropped from 85+ degrees to 35 degrees when we stopped in Kentucky for the night. ALL 10 tires were low by morning. I started filling them and noticed on about the third tire that there was no air moving. I got a couple of miles to a truck stop and had them pumped up. When I got home I found that the main reed-valve in the compressor had snapped off. I made a new valve from a piece of spring steel. After topping off two bike tires and two RV tires so far is is working fine. There are NO REPLACEMENT PARTS available... My 2c

**TXkmpr** · 09-23-2020, 02:25 PM

This one has worked well for me. $110
https://www.pepboys.com/onlineflow-t...roduct/9357343

**traveldawg** · 09-23-2020, 04:25 PM

Originally Posted by fez111

Our tires run 80 Psi on the truck and 110 max Psi on the Solitude....... we dropped from 85+ degrees to 35 degrees when we stopped in Kentucky for the night. ALL 10 tires were low by morning.

Just a note about low tire pressure in the mornings.....

This happens a lot to me when going from east to west and low elevations to high elevations. But in just about every case when I experienced this and others that travel with us (often in caravans) the tire pressure return to 'normal' within a few miles. So, for the most part - no adjustment required.

I'm probably preaching to the choir here, but filling tires at a very low temperatures and very high temps is suppose to be a no-no.

Since you didn't mention how low the tires were I'll assume you knew all this and made the right adjustments. Just thought I mention it in case others can use the information.