[jojo]

We just had our sprinkler system checked out and the guy told me that the seal was cracked on 6 rotors. $27 each including installation and no guarantee. There is better pressure and coverage but I too wonder how often this will happen. Our system will be three years old in August. I plan to do more research before I have someone else out. He also said that not running the system in the winter is bad for the seals. That is my very limited experience.