Alright,if you have no idea where the other valve boxes are,a master valve would be your best bet.
But, if you go up to we will say a 5 valve,valve box. One of them is certainly weeping,and you know that it is. You want to get that valve to weap,however it has done it before,be it after the clock shuts them off,or after you bleed it on and it doesnt fully close. Once the valve is weeping,start opening valves until the heads that are pissing out from the weaping valve,turn on full blast.Thats your valve.
if you have seen the heads weep,then you know which ones weap and you dont need to get it to weep. just turn on valves until those heads turn on. If they dont,you are in the wrong valve box for sure. Start hunting for another box,mulch bed edges,right outside the backflow,indents in the yard... It could also have a rock in the valve. keep that in mind. As soon as you shut the water off,it falls out of sight,you close the valve back up after replacement,and then the rock lodges in again.
This post has been edited 1 times, last edit by "servicetechMA" (Aug 1st 2011, 7:24pm)