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
1" backflow preventer in 1 1/4" mailline by grey (Jun 28th 2011, 4:08pm)	4	988	by Mitchgo (Jun 29th 2011, 12:51am)
PVB on a water well - ck valve too? by JayG (May 3rd 2006, 9:26am)	1	965	by Wet_Boots (May 3rd 2006, 2:18pm)
Need some comments... by Yongkee Cho (Mar 31st 2011, 9:15am)	2	955	by Wet_Boots (Apr 1st 2011, 11:17am)
Backflow for "Hose Bib" System by markejo (Oct 30th 2006, 5:20am)	2	953	by Wet_Boots (Oct 31st 2006, 1:04am)
Old Double Check Valve by tcameron (Mar 23rd 2003, 3:57am)	4	950	by drpete3 (Mar 27th 2003, 4:28am)
Choosing RPZ brand? by Jim-H (Sep 27th 2011, 8:00am)	2	949	by Wet_Boots (Sep 27th 2011, 5:31pm)
FEBCO pvb leaks under pressure by MMERSCH (Aug 11th 2003, 11:21am)	1	949	by Rays Sprinklers (Aug 13th 2003, 8:13am)
leaking valve by bschooly (Jan 20th 2013, 11:17am)	1	948	by Wet_Boots (Jan 20th 2013, 1:34pm)
Febco 765 spewing water by macann (Sep 12th 2005, 5:39pm)	0	947	No reply
Did I break my backflow preventer? by jsdummy (Apr 18th 2004, 3:39pm)	2	944	by aquamatic (Apr 18th 2004, 5:27pm)
Advice, opinions, or just a source of amusement? by manowell (Sep 6th 2015, 6:43pm)	7	940	by Wet_Boots (Sep 8th 2015, 5:44pm)
Relief spews water when inlet is openned by rwallisch (Jul 25th 2006, 1:37pm)	5	932	by Wet_Boots (Jul 27th 2006, 12:48am)
Febco 765 poppet by jwaler (Jul 14th 2005, 3:54pm)	5	925	by Wet_Boots (Jul 17th 2005, 11:13pm)
height of pvb by wilmar p. (Mar 30th 2002, 10:09am)	1	913	by RVLI (Mar 30th 2002, 10:53am)
Backflow prevention by RVLI (Dec 31st 2001, 6:06am)	3	884	by Rays Sprinklers (Jul 24th 2003, 4:35pm)
new zone higher than back flow by jet121 (Aug 1st 2006, 3:04am)	5	880	by jet121 (Aug 3rd 2006, 3:19am)
Does this Backflow prevent inspection sound right? And are fairly new RPZs not worth repairing?? by Wet_Boots (Feb 9th 2013, 11:55am)	1	878	by nine9s (Feb 9th 2013, 1:57pm)
Leaky Union Ball Valve End on Febco P765-1 by Tony57 (Jul 5th 2013, 5:10pm)	1	877	by mrfixit (Jul 6th 2013, 2:14am)
Winterized late - question about RPZ by asif_hu (Mar 10th 2007, 5:09pm)	3	872	by Wet_Boots (Mar 11th 2007, 7:23pm)
Rainbird 3500 by AK Regan (Jul 19th 2005, 4:11pm)	2	870	by bobw (Jul 20th 2005, 4:19am)