Are Submersible Pumps Safe to Operate? Extensively used for industries, such as pumping slurry, sewage, oil well, or water treatment plants, submersible pumps are electrical equipment submerged in the water or a liquid for its operation. So, how can electrical equipment be safe in the water, when both ingredients are formulas for a catastrophe? To combat the electrical shock, submersible pumps must avoid contact with electrical components. Subsequently, manufacturers use cast iron or a synthetic casing to seal internal components. Furthers, since the pumps operate in severe environments, casings construction is built robustly with high precision for different parts to have a flush fit for averting damage. O-rings and grooves are used to fit different casing components to keep liquids further...