Arrived at the location and spoke to the manager on site and he explain everything to me and I check the clean out by the urinal and all 3 hand sink and flush all the urinal and also started to run waternfrom the mop sink and water started to come out and the manager saw everything I used a small camera to inspect inside the wall I told the manager I was gonna send two different qoute for search for the leak and replace the concrete mop sink that is crack