Originally Posted by AI Inc
Screw the small rotor, they suck. Put in pgp,s or 5004,s with the biggest nozzle your gpm will allow. If its a view flow filter , use a #24 mesh.
I disagree... in my experience RB 3500s do not suck. I carefully calculated flow rates and all on a system that originally had Toro 300s a coupla years ago and picked nozzles accordingly... pressure had decreased in the neighborhood as new homes were added and the 300s were no longer covering.
Two of 37 or so 3500s failed and were replaced after 3 years... one looked like it was hit by an edger. PGMs/PGJs have a worse track record for me.
OTOH, I wouldn't use them with creek water.