Hunter Spray Head - More than 360?

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Cfipp

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I'm overhauling my irrigation system and I just bought some new Hunter 4" Pro-Spray bodies with green PDC-12A nozzles (stands for Precision Distribution Control, 12' radius/distance). I have installed the bodies and flushed them, and started putting in the nozzles. The nozzle is supposed to be adjustable from 0 (zero) to 360 degrees. But when I look at them, I'm confused: they appear to adjust for more than 360. Pictures show it better:

Here is the nozzle (I colored the raised dot with a red Sharpie so I could see it more easily when installing and adjusting):
IMG_6959 (Large).JPG


Here it is, almost fully closed (zero degrees):
IMG_6961 (Large).JPG


Here it is after opening one full turn (360 degrees):
IMG_6964 (Large).JPG


But that is not as far as it can open! It can turn open another approximately 270 degrees. Here it is, all the way open:
IMG_6968 (Large).JPG


Here I've repositioned it so that you can see both sides of the "stops" (can't seem to stop this photo from rotating - sorry about the orientation):
IMG_6970 NEW (Large).JPG


So does this spray head open more than 360? If I want to use it for 180 degrees, how do I do it properly? I'm guessing that I open it something more than a half turn since 360 degrees is 1 3/4 turns! For the one that is already installed, I'm not seeming to get a lot of spray out if it.

(By the way, not to lead the discussion astray, but I did not ask for these nozzles from my irrigation supplier. They talked me into them saying they were a lot better than a few years ago and don't tend to "walk open" over time any more. I'm aware that a lot of people don't like them and they tend to clog more easily. I may just take them back and ask for the fixed spray nozzles I wanted in the first place.)

Thanks in advance for all the good help you folks always provide!
Carol
 
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Cfipp

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Got wet in the process, but now know that one half turn counterclockwise is all it takes to get 180. Anything beyond a full turn just adds volume to 360.

I also know that I don't like these spray heads at all and will be exchanging them on Monday.
 
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