Has anyone had a plumbing leak in their slab and found a good plumber with a diagnostic camera? We have no water anywhere in the house, but there is a place that is very wet at the corner of the house where there is no plumbing. I am hoping it is rainwater and won't know till all ours drains off, but if we need someone, it's going to be a mess and I would rather not compound it with a parade of idiots.