I have a system with 6 zones using Rainbird 150 PGA valves. I did not use the system last year but am trying to get everything ready for this year. All the zones will automatically come on with the controller. However, one zone is not working properly. It will come on but only throws water about half the distance with not enough pressure to make the sprinklers reverse that are set for half circles. I have opened the supply valve all but no change. I get the same result if the zone comes on auyom...
