Redskins-21
New Member
I purchased a house last year that already had an irrigation system installed by the previous owner. Come to find out, this system does not have a backflow preventer installed. I am looking to install an RPZ valve type backflow but through my research have encountered conflicting information.
My house sits on a long rectangular 1 acre lot which gradually slopes down toward the road. I have read that the backflow preventer needs to be installed 6" - 12" above the highest sprinkler head. With the slope of my lot this would be about 8' in the air and looking ridiculous. I have also read that with this particular RPZ type backflow that it just needs to sit 12" off the ground where it is to be located. Which is correct?
My house sits on a long rectangular 1 acre lot which gradually slopes down toward the road. I have read that the backflow preventer needs to be installed 6" - 12" above the highest sprinkler head. With the slope of my lot this would be about 8' in the air and looking ridiculous. I have also read that with this particular RPZ type backflow that it just needs to sit 12" off the ground where it is to be located. Which is correct?