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Starting Member

Posts: 1

Location: USA


Tuesday, May 15th 2007, 1:40am

Impulse Sprinkler not rotating

I have a 4 zone system with 4-5 sprinkler heads per zone. Last year 3 of the Rainbird impulse sprinklers on Zone 1 pop up and seems to have enough water pressure but they do not rotate as they should. I replaced all three last year and they seemed to be operating fine all summmer. I winterize all sprinklers last year as ususal. Last week I turned on sprinklers for first time and zone 1 was not working. After I found and repaired a leak on a craked valve manifold for zone all sprinklers heads ( rainbird Maxi paw impulse sprinklers) pop up but the same three that I replaced last year do not rotate. They seem to have enough water pressure since the water streamin from them shoot out about 25 - 30 ft. The other 2 heads on zone 1 rotate just fine. I checked for any leaks and could not find any. All other zone sprinklers work fine. Zone 1 is also the closest zone to valves and water source. I am totally baffled. All three heads I repalced last year can't be all bad. It's strange that the same three are having same problem again. I'm pulling what little hair I have left out totally baffling.


Supreme Member

Posts: 5,292

Location: Metro NYC


Tuesday, May 15th 2007, 3:18am

Maxipaws use color-coded nozzles, and blue is standard. Black and red are smaller sizes. Sometimes you get a Maxipaw zone to work by swapping for smaller nozzles, to use less water and gain more pressure. For the smaller nozzles, and for low pressure in general, you want to reposition the arm spring to the low-pressure notch.


Advanced Member

Posts: 158

Location: FT. Walton Beach, Florida


Tuesday, May 15th 2007, 1:46pm

I agree!
Irrigation /Landscape Lighting / Pump and Well Specialist

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