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j.m.

Starting Member

Posts: 1

Location: USA

1

Tuesday, August 13th 2002, 4:59pm

Rain Bird ASVF Series

Do i need a standard back flow device if i use the rain bird asvf series control valves with back flow prevention

john machalek
john machalek

RVLI

Supreme Member

Posts: 460

Location: USA

2

Tuesday, August 13th 2002, 6:33pm

No. They already have the backflow device in them. Just make sure that you have them installed at least 6 inches above the ground.


BrettCB01

Active Member

3

Thursday, July 24th 2003, 4:20pm

Go to the Rainbird site http://www.rainbird.com/pdf/turf/ASVF_Manual.pdf
You will find that Rainbird says "Do not use this anti-siphon valve as a mainline backflow device nor as a master valve."


Rays Sprinklers

Supreme Member

Posts: 493

Location: USA

4

Thursday, July 24th 2003, 4:25pm

Anti Siphon valve has a backflow prevention device inside, this valve acts as a backflow and a valve. If you decide to use inline youwill have to install another backflow preventor, before the valves. Remember for these to work properly, you must install them 6" above the highest sprinkler head!!

Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers
Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers

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