RVLI has a good idea, but are all your zones sprays???? You dont want reduced water flow and presswure if you have a zone of water. If you have abnormal pressure (i have about 80-105 psi) i install numerous amounts of heads ont he line. That way the pressure evens out. If you have a zone of sprays with 3-5 sprays then i would spend the money for the sprinkler head PRX.
Also run as many as you can with the GPM, if you really dont want to spend the money than you can buy regular heads anyway
Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers
Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers