I just moved into a house in which the sprinkler system has been winterized. I want to get it going again, but I'm not sure what to do about these four valves here.
The previous owner told me that I need to go under the house and open a valve to deliver
water to the sprinkler system. I did that that and may or may not have turned the two blue knobs (can't remember what state they were in originally), and water started spraying out of the four valves in the picture above.
I can tell from looking at it that I'm probably supposed to get a screwdriver and tighten or close those valves. But I don't want to make an educated guess and damage the system. Should I completely close off all four of them?
Best Answer
I'm no plumber, but I did just install my own sprinkler system. That looks like a reduced pressure assembly used for backflow prevention. the little screwdriver valves at bleeder. You should only need to touch them if Water comes out. With the main water under the house on, turn on the the big valve closest to the house first, then the second valve closest to the sprinklers. That should do it.
Google RP (watts makes them) and you should find plenty of info. Poetically no exact matches on pictures, but ask the right parts in the right places