On 7/9/2011 1:48 PM, Pat wrote:
....

Compressed air can drive particles of dirt thru the filter leaving holes in
the filter for dirt to enter the engine. I tap mine gently to knock off the
loose stuff. Then I wash with soap and water. I repeat this several times
before buying a new filter.

Not if blowing them from inside...then you're blowing the collected
stuff from off the outer surface and it can't/won't go thru cuz' it
going in opposite direction--leaving the surface not being forced
through the media.

I've had no luck whatsoever w/ one once it's been wet...and, ya' don't
blow w/ extremely high air pressure. All that's done is turn the former
dust into a cake that then won't come off easily or at all.

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