Do it on your own movie on winterizing a garden sprinkler program by means of a port in an earlier mentioned floor backflow preventer.
In this movie I shut down and air out my garden sprinkler program by using a port in an earlier mentioned floor RP backflow preventer. The compressor used is a Craftsman twenty gallon compressor that provides five SCFM @ 40psi. Sections used in movie are annotated.
Post time: Nov-05-2016