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Old 08-06-2011, 07:38 PM
GreenLight GreenLight is offline
LawnSite Senior Member
Join Date: Dec 2008
Location: Birmingham, Alabama
Posts: 460
I always hear the "longer run times needed" for mp's vs standard rotors and I still don't get this. Every performance chart I have ever seen says the MP is a close equivalent per radius @ 40 psi to a RB Standard angle 4.0 and a Hunter (red nozzle) 7. Those are both fairly high distribution rate nozzles for residential apps and the MP is about on the same precip rate as both (roughly .4 inches per hour).

I will agree, that I believe you have to over spray edges a bit with mps as they put out a bit of a false radius as they open up and die off.
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