Joined: Mar 2010
Posts: 339
shop vac
9/1/2015 at 6:09 AM
Used it on my system for the last 5 years.
Don't need a compressor.
You have to do each zone separately.
If the sprinkler heads don't pop up just tap them with your hand and the water comes out.
I only have a small shop vac too, but it works. Just takes a little longer.