Assertion: sprinkler system's water | /r/HasProperty | left in pipe
Facets:
Source sentences:
text: We hook up an air compressor to the irrigation system and blow out all of the water before the first freeze, so when the ground freezes, no water is left in the pipes,” says Walla.
text: If it is low head drainage, residual water will stop flowing after all the water has left the pipe.