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Hey, I’m Sean from Sprinkler Daddy and in this video I just want to talk about one of the many solutions when you’re talking about backflow prevention for sprinkler systems.
Backflow is a difficult issue because all the different areas whether you be in the United States or Canada seem to have different requirements for backflow. When you talk about backflow, there’s isn’t just one solution that will necessarily work for the codes in your area so that something that you have to check out with your local plumbing codes and that sort of thing but sometimes you’ll have backflow prevention already incorporated in the plumbing inside the house.
Other times you have to come up with something different or sometimes there’s a call for double check valves, sometimes it’s a pressure vacuum breaker, sometimes there’s a variety of different options that might apply in your area but what we want to do in this video is talk about one possible solution for you and that is a pressure vacuum breaker that I’ve got here.
This is one is from Wilkins and we carry this in the Daddy Sprinkler stores, a little plug there. If you’re looking for one you can go check out in the store and I’ll have links in the description of this video but basically we’ve got this vacuum breaker readied up with all the fittings that you would probably need to put it on a 3-1/4 inch female thread and then go down into a Poly-pipe system.
So, in the store, just in common with all these items but you can just like contact us or hopefully you’ll have all the other items that you’ll need up there so that you can bundle it all together.
So, basically I’ll just walk you through where you’re going to come out from your hose is right here and the water will flow up into here, out here and down here into your sprinkler system. So, what this does is if there are any vacuum or a vacuum effect from your main water source, the water can get sucked back through your sprinkler and back into the water supply and obviously that’s not a good thing because of that contaminates like it could be in your yard. This is the solution to that.
Basically, if there’s a back pressure from the main water or trying to suck water back from your yard into the system basically right here, this pressure vacuum breaker will break the seal and won’t let water back into the system.
Basically, something all about this, you have to install at least 12 inches above the highest sprinkler. So, if you’ve got a sloping yard, for some reason you’ve got one way up on the hill this might not work unless you can somehow you can get it up in the air so it’s going to be 12 inches above the highest hill. That’s something that you should know.
Let me just go through how I kind of got this rig up. Basically, we’ve got a 3-/14 inch brass nipple here that we will screw into the wall. Here’s a 3-1/4 inch female thread and that’s into a brass tee basically with a one service on there so that you can still hook up to attack there so you don’t lose your water service and then you go obviously up into your vacuum breaker that comes out to here and then what we’ve done is we’ve added another tee here with a snapper valve on it so that you can blow out your lines in the fall.
And then we’ve got an adaptor here that will go down into your manifold. So basically, that’s a quick crash course on what we’ve got for pressure vacuum breakers to help with backflow prevention in your sprinkler system.