Hi, guys, thanks for all the great feedback and suggestions!
My yard guy said that too much pressure can cause some of the rotators to freeze in position, which I do have occurring.
I decided to pick up a Hunter MP Rotator pressure gauge (A Hunter MPGAUGE like this one) to see if there was an actual pressure issue.
I got the meter today. The needle rests at 10 PSI instead of resting at zero, so there is likely to be an offset in my readings. That said, the meter read 56 PSI on my section that had the fewest MP rotators, so I am pretty sure that I don’t have a real pressure issue.
Based on your suggestions, I will not make any modifications to the wiring at this time.
Is there a way to get the needle reset on my meter? I don’t see any adjustments.