Kirabear
05-14-2006, 02:43 PM
I am relatively new to the irrigation world and I am confused as to the difference and importance of the CU and a DU? If you have a system spaced at 40'x50' that has a CU = 75 and a DU = 80, what would be the difference between a system with the exact spacing, but a CU = 80 and a DU = 75? Which would be preferable? Thanks for any input, I appreciate it.