SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

Good afternoon,

I live on 2 acres, the lot is about 600 x 300. The height from front to back (elevation change) is about 100 ft. When I bought the house the irrigation system was in. Most of the valves ate at the house , about half way up the hill. Most of the rotors and drip are above the house. I just read that the Antisiphon valves that are installed “must be installed” 6” higher than the highest sprinkler. This is not the case….. The highest sprinkler is about 20 ft above the valve. What should I do????

Thanks
Tim

I am on a well so the presure is between 30 and 50 as it cycles on and off. I am running roters (Orbit and hunter). I would guess that 10 to 15 lbs of friction losss that is not an option..... howmuch back presute and a 3/4 valve with back flow handle?
TimCA