You may have to open and close the arc adjustment several times to pass the debris.
Also, MP Rotators rely upon the incoming pressure of the water passing through the nozzle to produce rotation of the top portion of the nozzle.
If this pressure is restricted, it can result in slow rotation or no rotation at all.
The standard MP Rotators have a matched precipitation rate of approximately 0.4 in/hr.
This means any standard MP Rotator at any arc or radius can be placed on the same zone.
Standard MP Rotator Precipitation Rate The Standard MP Rotator has the slowest precipitation rate in the industry at approximately 0.4 in/hr, preventing runoff in the majority of soil applications, and allowing for gentle hydration of the landscape.