Last year I had a system put in. My pop up sprayers all seem to not be putting out like they should. The heads are Nelson (12' nozzles). This weekend I went to Home Depot and bought 3 generic pop up sprayers (12' nozzles) and put them in place of 3 of the Nelsons. The generic ones work awesome, the Nelsons just suck. I thought maybe my pressure was low, because the Nelson heads barely pop up and cover only about half of the area they should. Since the generic one's work so well I think it is the...
