Sprinkler System Tune-up, Installation, Renovations & Add-ons
Febco Pressure Vacuum Breaker Draining Procedures
Inside
Turn sprinkler water valve off (usually in basement or crawl space).
Loosen inside cap by hand (be careful not to lose cap or seal)
Outside
Turn both blue valves to 45 degrees.
Turn both testcocks screws to 45 dress (side of vacuum breaker)
Loosen outside cap by hand (be careful not to lose cap or seal).
Febco Pressure Vacuum Breaker Start-Up Procedures
Outside
Turn both blue valves off, perpendicular to pipe.
Turn both testcocks screws to vertical position, perpendicular to the ground.
Tighten outside cap by hand.
Inside
Tight inside cap by hand.
Turn on sprinkler water valve slowly for 15 seconds, then to full “on.”
Outside
Turn on bottom blue valve slowly perpendicular to ground.
Turn on top blue valve slowly parallel to ground.
Click to download this vacuum breaker draining procedure information, along with information about the Febco Model 765, as a PDF.
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