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Review title: strange behavior
Product review: I bought two Rainbirds including this Rain Bird 4-Inch 26 to 38-Foot Coverage Radius Pop-Up Rotor Sprinkler Head. I install them and turn on the water. Perfect--- just what I wanted and expected. All was well for the next couple of times. Then, when the sprinkler turned on the fourth time, the water pressure was very low and the two Rainbirds were watering only a third of normal. When I checked, this Rainbird had water gushing straight up out of the head. I eventually found that by pushing on the top of the head, the gushing stopped but pressure was still very low. Two days later that zone ran again and the Rainbirds ran as they should covering the intended area with good water pressure. They are due to run again tomorrow so we'll see.
