Underground, somewhere, 120'+ between transformer and meter can, mostly concrete and brick work, one of the ungrounded line (single phase service) broke. POCO installed temporary service and sugested to find the damage and splice it. Electric service is 45 years old. I don't agree with POCO, they should be replace and new service installed. The existing service is an overload 100 Amps. But if customer insist, because he does not want to tear the concret, what will be the easiest way to find the break under all this concrete? BTW I already replaced 5 services in the same area because of this problem and this is why I don't agree with POCO.