<prompt> Human: Hey,Weve have a good experience for a year in our apartment. Its a 4 person apartment, and WD included. On average, our bill comes out to be 60 for water. We split this cost between the four of us. Originally it was just 3 of us, so we are the ones on the lease. The 4th we havent added, as theres a hefty signing fee.So this past month bill issued on the first of and due the 20th we received a bill totaling 860. The Water usage had hit some extra tiers so the water bill spiraled out of control 78 CCF Water Tier 3 and 88 CCF Waste Water. According to the bill, we used 2,123 gallonsday on average. To us, this is mind-boggling. The obvious response is, Its a leak.So we put in a work order with our apt complex. It took them 3 days to get to our place and check, but when the workman did, he found nothing. The apt office printed a receipt of our work order and I had signed off with the work order saying they found no leaks.Calling the Raleigh Utility office, they essentially said that no adjustment will be made unless they see proof of a leak.So now Im stuck between an apartment complex offering to take no responsibility, and a city who will only adjust if they see proof of a leak. Weve checked our bathrooms and WD for leaks to the best of our ability using Google for help. But were still at a loss.How do we manage our position and help get this problem solved?  <response>: You have a meter somewhere I assume, and a stop cock shut off valve. At this volume of water and cost, I would be buying in large quantity, shutting my own water off and proving that the leak is my side, or the meter is faulty or someone is stealing my water. 