Who created the pump "F.L.U.D.D." Mario uses in Super Mario Sunshine?

Elvin Gadd, also known as Professor E. Gadd, created the Pump FLUDD that Mario uses in Super Mario Sunshine. A brilliant inventor, Gadd is known for his creations and gadgets. In Super Mario Sunshine, he invents and provides the pump-powered water pack FLUDD to Mario, which allows him to spray water and clean up pollution on the tropical Isle Delfino. Gadd's creation not only assists Mario in his quest but also adds a unique gameplay element to the game, making it a memorable addition to the Mario franchise.