The work was accomplished utilizing a 210' four point boat with divers. The divers guide the RetroPod to the bottom and apply the RetroClamp to the prescribed tubular (usually a diagonal near the sea floor). The time differences are due to some structures requiring minor scraping, and to stand-by time caused by other operations being performed. There were a total of 94 anode pods positioned strategically around and inside the structures on-bottom.
The ease and simplicity of the system reduces the divers' time on bottom (one pod can be installed in as little as one hour), and the diver is not required to interface with any heavy loads in the water (since they are using clamp-on anode replacements). The innovative RetroClamp system allows the pod to be clamped and electrically connected to the diagonal member, completing the circuit necessary for the cathodic-protection system to begin polarizing the structure. The RetroClamp can be installed by diver or ROV (divers in this case).