Thomas Angle is the Geschäftsleiter (CEO) of Swiss Flow Solutions. He is a member of the Pumps & Systems Editorial Advisory Board. He may be reached at tom.angle@swissflowsolutions.ch. Julien Chalet is a mechanical engineer with a degree from Ecole Nationale d’Ingénieurs de Tarbes. A technical manager at PROFLUID, the French association of pumps, mixers, valves and compressors, he is secretary of technical commissions of EUROPUMP, the European pumps association, and CEIR, the European valves association. For more information, visit profluid.org or europump.org.