How to Make a Sprinkler Blowout Adapter Safely
A sprinkler blowout adapter is a short fitting assembly that connects an air compressor hose to an irrigation-system drain, hose bib, or approved downstream blowout port. To make one, join a 1/4-inch NPT air quick-connect fitting to the correct 3/4-inch garden-hose-thread or NPT irrigation fitting, then control airflow with a ball valve while staying within […]