We have a major & expensive mystery?
Somewhere out there we have a huge water leak and we have a big yard, there are another two areas not shown here. Normally we would know where all the water lines run and be able to find it under the house probably. But the crawl space is completely dry and nothing in or under the house appears to be the problem.However the previous owner installed an underground sprinkler system for the whole yard, which is wonderful in the summer. But when you have a major water leak it rapidly becomes a nightmare, as we have water lines all over the front and back yards as well. We have already done the obvious, like walking the yard feeling for soft or wet patches and sticking in a metal stick intermittently. We do have a plan of where all these lines are, but we can't use any kind of detector, because it will pick up water in the lines.After long discussions with our city maintenance man, the Hubster this morning dug up around the sprinkler cut-off valve to check it, we were praying it was the source, but sadly it's not.So he's back on the phone now chewing it over, and I have called his bestfriend to come and give his input to. The sprinkler system has been turned off for the winter but somewhere out there it's leaking. We are sure of this because we had a small leak last winter and the moment the system was turned back on for spring, it went away and we thought problem solved.We have to find it fast. In November we used 10,000 gallons in the month, we have just used 12,000 gallons in the past 5 days! Our January bill is $120 which we still have to pay, normally it would be under $40! Unlike in England, the water comes from the city, so there is no water company to call for help.I know it's unlikely, but if anybody has any good ideas on how to find the leak, please jump in.