Underwater Investigation

Many a times testing of underwater structures becomes very difficult. Most of the ND methods cannot be conducted underwater and we are required depend only on the visual inspection of the underwater structures. One way of inspecting underwater structures is send the non-technical divers and capture images or to capture video / images by underwater camera operated by a technical person sitting outside the water. The cost of second option is less and is recommended as the onsite inspection is done by a technical person.