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Product Review: VIAIR 400P-RV Automatic Portable Compressor

We needed a tire inflator for both our Jeep and RV. After one of our RV tires ran flat without us knowing, we were eager to get something for those low pressure times. We also purchased a TPMS (Tire Pressure Monitoring System) which we’ll talk about in a later article. Anyway, we also needed a fairly fast inflator for our Jeep tires. When we go off-road, we usually deflate our tires from on-road pressure of 35 PSI to 20 PSI. However, when we come off-road, we want to spend as little time as possible re-inflating our Jeep tires.

We’ve tried the under-$100 inflators that you can pick up at Home Depot, Lowes, etc, but our experience with these types was bad. They just didn’t have the “guts” necessary to inflate a 115 PSI RV tire.

After reading several on-line reviews, we bought the Slime Pro Power Tire Inflator for about $80. It lasted about 10 minutes trying to inflate an RV tire. Then the Slime inflator literally fell apart — screws in the compressor become undone. The good thing was that we were able to return it for a full refund.

Slime Pro Power Tire Inflator

Slime Pro Power Tire Inflator

After reading many reviews, this time we opted for the VIAIR 400P-RV Automatic Portable Compressor (about $250). Finally, we also recommend the TireMinder pressure gage (about $40) as it’s a fast and accurate way to measure RV and auto tire pressures.

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Redneck Leak Fix

But first a photo from our Valentine’s Day Jeep trip to McCracken Mine . . .

McCracken Mine

McCracken Mine (that’s Marv in the photo)


There’s a leak in the roof of our washer/dryer shed. I discovered it a year ago, but just haven’t bothered to fix it.

To properly repair it, I really should remove the roof shingles and reroof the shed. However, I’m not motivated. Since it doesn’t rain often, I came up with a shortcut that should work  . . .

01 - Attach an aluminum paint tray . . .

01 – Attach an aluminum paint tray . . .

02 - . . . under the roof vent . . .

02 – . . . under the roof vent . . .

03 - . . . and drain the water outside

03 – . . . and drain the water outside