A Man of Confidence: Ralf Otterpohl, Water SpecialistA Man of Confidence: Ralf Otterpohl, Water Specialist2009Queuebrick VideoQueueLWatchedWFavoriteFListsDiscussionWhere to watchCopy short link2009A Man of Confidence: Ralf Otterpohl, Water Specialist25m·DocumentaryDirected by Documentary short by Romuald Karmakar.DirectorRomuald KarmakarCinematographyFrank GriebeStudioKairos-FilmOverviewDiscussionCastCrewDetailsWhere to watchNo cast listed.