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Old 10-05-2012, 07:59 PM
muddywater muddywater is offline
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Join Date: Sep 2011
Posts: 1,813
They will wear out faster if they are that low because dirt will scratch the part of the rotor that pops up and eventually it will not retract. But they can still last years if they are installed that low. Usually they are installed in a trench and the crew does not compact the soil beneath the head and they sink over time.

Could be a valve seeping to the lowest/nearest head and causes those wet spots, but then again it could be a break, or a valve box might be near and it is leaking out of a valve, or they could be watering too much, or they could have a drainage problem etc.
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