Backflow Devices

There are 5 types of backflow prevention assemblies (Air Gap, AVB, PVB, DC, and RP; but, these are not all equally acceptable as protection against all types of hazards. Look here for help in choosing the correct device to protect your drinking water.

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Threads

	Replies	Views	Last post
Febco 765 3/4" by golemchamp (Apr 25th 2012, 2:36pm)	1	700	by GatorGuy (Apr 25th 2012, 3:22pm)
Wilkins 420 or 720AA? by handyandy? (Jun 18th 2011, 1:19pm)	1	680	by Wet_Boots (Jun 18th 2011, 1:26pm)
Febco Clanging by mcdonnellk (Jun 15th 2011, 9:33am)	1	572	by Wet_Boots (Jun 15th 2011, 10:16am)
Good filter? by aswilburn (Jun 15th 2011, 1:32am)	1	500	by Wet_Boots (Jun 15th 2011, 8:09am)
internals diagram of Watts 800M4 PVB? by OlieNH (Jun 3rd 2011, 1:49pm)	1	2,364	by worachj (Jun 3rd 2011, 2:06pm)
Water Flowing out Vacuum Breaker by JB (May 5th 2011, 8:41am)	1	706	by Wet_Boots (May 5th 2011, 7:25pm)
Do I even need a PVB valve? by equalizir (Dec 9th 2010, 12:31pm)	1	1,356	by hi.todd (Dec 12th 2010, 3:35pm)
PVB sizing by cozz55 (Jul 5th 2010, 9:16am)	1	842	by Wet_Boots (Jul 5th 2010, 12:04pm)
Wilkins question that got emailed to me by Wet_Boots (May 3rd 2009, 11:15am)	1	1,089	by backflow505 (Jan 16th 2010, 8:23pm)
backflow device by jse317 (Jun 22nd 2009, 6:49pm)	1	554	by Wet_Boots (Jun 23rd 2009, 9:18am)