You want to be extremely careful if you attempt to use an air compressor. *Because* they get to such high pressures, they *can* blow up the lines. You really need a high volume, low pressure source to "blow" the air through the lines, whereas the compressor "squeezes" air through the lines.

I bought my line blower from www.poolsinc.com (search for "line blower"). It was a bit pricy, but well worth it because the big hole in the ground in my backyard isnt going anywhere for a while and it would cost me $75.00 each season just to have the pool guy come out and blow the lines (the chemicals and draining I can take care of myself).

-Chris