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Backflow Preventer

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  • May 16th, 2015 9:06 am
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[OP]
Member
Sep 24, 2003
300 posts
3 upvotes

Backflow Preventer

I'm installing an in-ground sprinkler system on my front yard and from what I understand I need to install a backflow preventer. There're complex ones and simple ones..

So I'm just wondering if I use this type below from HD, or the Pressure Vacuum Breakers that I couldn't find anywhere on HD website...

http://www.homedepot.ca/product/vacuum-breaker/917682
[IMG]http://www.homedepot.ca/wcsstore/HomeDe ... 6370_4.jpg[/IMG]


PVB
[IMG]http://cdn3.volusion.com/7j5ob.q34uw/v/ ... 02F-2T.jpg[/IMG]
7 replies
Deal Addict
User avatar
Dec 27, 2007
1302 posts
742 upvotes
Oshawa
Irrigation systems are moderate hazards and as such require a Double Check Valve Assembly, Pressure Vacuum Breaker, or Atmospheric Vacuum Breaker.
Deal Addict
Oct 20, 2011
1159 posts
436 upvotes
Mississauga
Check your codes, I believe in the Mississauga/Toronto area it states "double check valve".
[OP]
Member
Sep 24, 2003
300 posts
3 upvotes
Thank you all for your replies. In Halton, there are two types of preventer mentioned on their website

* Reduced Pressure Principle Assembly (RP)
* Double Check Valve Assembly (DCVA)

but I couldn't find any place sells these things.

Except eBay or websites in the states.
Deal Fanatic
User avatar
Oct 19, 2008
7264 posts
2848 upvotes
GTA
fayenet wrote: Thank you all for your replies. In Halton, there are two types of preventer mentioned on their website

* Reduced Pressure Principle Assembly (RP)
* Double Check Valve Assembly (DCVA)

but I couldn't find any place sells these things.

Except eBay or websites in the states.
I'm only familiar with Orbit brand-they do offer a DCVA. if your Home Depot doesn't carry they can order it in, its about $60. Some of the better irrigation brands have backflow preventers built into manifolds, on the water entry side....if your area requires a double valve I guess that's of no use.

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