I finally installed my Davey booster system. What a HUGE difference. Install was simple and the pump is very quiet. I probably could have gotten away a bit cheaper but this unit is self contained and an easy job for the average person. I have the pressure reducer set to 20psi and it boosts the output pressure to 65psi. My household pressure when running my sprinklers is 48psi. I never had that when everything was off! As far as sprinkler performance I think I need to change/adjust the nozzles on my PGP's. They shoot at least 30% farther and I'm watering the street Can I use the same nozzles and reduce distance with the screw? Right now the adjustment screws are not interfering with the stream. Thanks again for all the help. I'll try and snap some photos later on if the weather improves. J.