Bilge pump

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A bilge pump is a pump to remove bilge water. Because fuel can end up in the bilge, electric bilge pumps are designed not to cause sparks. Electric bilge pumps are often fitted with float switches which turn on the pump when the bilge fills to a set level. Because bilge pumps frequently fail, a backup pump is advised. The primary pump should be located at the lowest point of the bilge, while the secondary pump should be located somewhat higher. This activates the secondary pump only when the primary pump is overwhelmed and keeps the secondary pump free of the debris in the bilge that tends to clog the primary pump.[1]