I saw this ad on ebay and I'm tempted:

http://www.ebay.com/itm/Air-knife-c..._DefaultDomain_0&hash=item2ec338090a

Those things are like $1200 a pop. To make it easy to dig up lines. I am not sure I want to add the price of compressor rental to estimates. It sure as hell would make digging hard ground easier.

Anybody have experience with these?

Last edited by hendo; 11/07/12 11:00 PM.