Ok since I did not have the digi cam with me today: Property on a hill lets say 35' pitch about 100 feet long yard, house in the middle. Nice house BTW(sh!t system).In about 50 feet down the hill on the foundation of the house is a watts 1'' DCA, I was stunned but something started to click(strangely)> The reason why its not a Pvb is because the height of the sprinkler heads in relation to the location for the POC.I bring up this issue cause I always thought the DCA should be installed in the ground.Have you all seen this before? Should The DCA of been installed in the ground?Does it matter? thoughts? Comments? Concerns?