ROV technology boosts port’s eco-credentials Valencia, Spain -  The Spanish port of Valencia could be set to break Algeciras’ virtual vessel maintenance services monopoly in the country, thanks to the availability of the eco-friendly HullWiper hull cleaner, according to the Managing Director of the company behind the diver-free system. “Until now, hull cleaning in Spain has largely been associated with Algeciras, at the southern tip of the country, due to the concentration of maintenance companies using traditional methods there,” says GAC EnvironHull’s Simon Doran. “But that could be changing. With the availability of HullWiper, Valencia is featuring more and more on the radar of owners and operators looking for an alternative that makes sound economical and ecological sense.”