Many utility operators require use of an ROV prior to a diver entering the water. A dive site may be checked for the presence of differential pressure, obstacles which could entangle a diver or other potential hazards. The ROV can also be used to locate objects and verify depths, which helps in better planning of dives.
Unlike a diver, an ROV does not require decompression. In the case of deeper water depths, use of an ROV for inspection can help conserve diver bottom times, reserving them for critical tasks. UCC has used ROV’s in conjunction with a dive team to complete many inspections, particularly in hydroelectric plants. The ROV first performs the general visual assessment, and then divers for gathering more detailed information – such as taking measurements.