Hi, we recently had a catastrophic slab leak. Our kitchen, dining and family rm had to be demo'd so that the restoration co could remove the water and dry it. All our hard wood has been removed too, extensive damage to our floor, cabinets and island. The 1 st day the plumber thought it was a pin hole leak, but as he did not have the equip to proceed further, he said he will come later. Since then 6 plumbers have come and they are unable to identify any leak, some say it could have sealed with something. The restoration co was sure it was a slab leak from the pressured copper pipes as gallons of water was removed and dried over 2 weeks. So my question is- how can we detect the leak and proceed to repair it? Please help