Calpeda NGM 6/18 Self-Priming Jet Water Pump (2HP)Calpeda NGM 6 18 Self Priming Jet Water Pump (2HP) Close coupled self priming shallow well pump with built in ejector. Applications For drawing water out of a well. For lifting water containing air or other gases. For increasing water pressure from flooded suction applications. As pressure boosting pump for central water systems with low pressure (follow local specifications if increasing network pressure). For garden use. For washing with a jet of