Winterizing Irrigation system

The Monday before Thanksgiving we blew all the water out of our irrigation lines.  This is a pretty big job.  We first open up drains and heads in low areas to drain out as much water as possible.  We have to rent a large air compressor.  We pump air into the irrigation system at the pump house.  This pushes all the water out of the irrigation heads that we turn on 1 station at a time until all water is pushed out.   We have 263 total stations.  It takes 8 to 10 hours to push all water out of our system.

 Compressor hooked up at pump station

 Water being pushed out of system

 Air and water being pushed out.  Notice the fog.

Sprinkler head almost purged of all water.