View Full Version : Backflow Preventer Sizing

04-05-2005, 12:49 PM
Greetings all! I had a backflow device (Zurn 975 XL) installed for an irrigation line. The line is 3/4" and the backflow device is 1". Is there any problems with this setup?

Thanks much.

Gary Swart
04-05-2005, 02:34 PM
No problems.

04-05-2005, 02:57 PM
Would there be any advantage to it? I.E. better pressure or maybe he only had a 1" on hand?

Gary Swart
04-05-2005, 10:34 PM
I can't see any advantage, but it certainly won't be a problem with pressure or volume.