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Old 09-12-2012, 12:15 AM
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cjohn2000 cjohn2000 is offline
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Join Date: Jun 2010
Location: Tacoma, WA
Posts: 451
Looks like one of those Hunter PCZ drip control zone kits, with the 1" PGV w/ flo, filter and fixed pressure regulator. We winterize drip zones on our systems, can take a while, is there a air/vac relief valve at the highest point or auto line flushing valves on the end of the runs or manifolds?

I remember reading somewhere that it is better to set the pressure regulator before the control valve since the pressure regulator can take time to adjust down and in that adjusting time the high pressure can blow the small drip fittings apart.
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