Thanks for the suggestions. So, I will be crossing out the orbit. I will stick with rainbird/hunter. Tnanks again.
I am planning to get automatic lawn sprinklers professionally installed in me exisitng lawn, whcih is approximately 6800 sq ft. I got few quotes where the price range is $2500 to $3000, for spray heads ranging from 24 to 30 and zones 6 to 10. The contractors are not very specific on the brand that they are going to install, but are saying any brand you request. ??. (Orbit 5500 is the one which tend to be little more expensive, but carries 7year warranty. I don't hear much about orbit products!!)...