Performed leak detection and found customer had a hot water slab leak located under kitchen cabinets. Performed line tracing and manifold locating and determined the leak was on a half inch copper line that came from kitchen sink and come up behind washer machine. Explained to customer the situation and recommended performing a whole house repipe due to the fact he has had leaks in the past. Customer opted out and instead wanted to re route the line that’s leaking a well as the copper line that feeds his kitchen sink due to this line having a leak in the past as well