Run for the hills I have a house that is 11 years old and the rotors are starting to go, I have a variety of brands unfortunately but good for you. I have the Rainbird 5000, Wheathermatic Turbo 3, Toro and Nelson 6000. This year when I opened up the system I had to replace, you guesed it 4 Nelsons what a peice of garbage!!!!!!!!! they stick dont rotate and did not last. Spend your money wisely, I put in new Hunter PGP's and new hunter rain sensor so far so good. O'h by the way two more Nelsons g...