Suppose you suspect maybe there is a leak in a latteral line. Not the main line. You can tell that that is not leaking (e.g. by checking the water meter.) But for some reason or another (e.g. lawn is abnormally wet in certain areas...or maybe customer's water bill is higher than usual, etc.) you think maybe there's a leak in one of the latteral zones. How do your troubleshoot this? Assume, obviously, that even though you suspect a leak - you have no obvious evidence of it. That is, you don't see water bubbling up anywhere under the lawn, etc. The only thing I can think of is to go to each zone that runs through that area and turn the heads on that zone completely off. Then open the valve for that zone, let it pressurize, and check the water meter again. If there is no leak, the water meter guage should stop moving as soon as that zone is pressurized. But this method is kind of a major PITA. Especially if you have to do it for 3 or 4 or 5 zones. Turning off each head, opening the valve, checking the water meter, closing the valve and then turning back on the flow on each head and adjusting the distance all over again? Then to have to do this whole process AGAIN for each zone??? Is there a better way?