It's not always that easy to see. I'm on the board for my city's utilities and we recently had a leak in our 48" water main that was 380,000 gallons/day. We fou

It's not always that easy to see. I'm on the board for my city's utilities and we recently had a leak in our 48" water main that was 380,000 gallons/day. We found out about it because of all the water coming up in someone's front yard. After repairing it and doing pressure tests, we now know we have another leak in another part of the main. However, there's all sorts of roads and other things build along the way so it's hard to know where it is, especially if it's not as big of a leak.