WATERAX WATSON MARK 3 PUMP

The WATERAX MARK-3® Watson Edition is a portable high-pressure fire pump designed for wildland firefighting, remote operations, and demanding water-moving applications. Built around the proven MARK-3 platform, the Watson Edition combines high-pressure performance with a lightweight, compact design for easier transport and deployment in the field.

Powered by the WATERAX W140 2-cycle engine, the MARK-3 Watson Edition delivers a maximum pressure of 380 PSI and a maximum flow of 100 GPM. Its detachable 4-stage centrifugal pump and backpackable frame make it well suited for direct attack, relay pumping, high-elevation operations, and moving water over long distances.

Key Features & Specifications

• Maximum pressure: 380 PSI (26.2 bar)
• Maximum flow: 100 GPM (379 L/min)
• Maximum head: 877 ft. (267 m)
• 80 GPM at 100 PSI
• 70 GPM at 150 PSI
• 40 GPM at 250 PSI
• WATERAX W140 2-cycle, air-cooled engine
• 10.7 HP maximum power
• Recoil starter with backup manual rope starter
• Detachable 4-stage centrifugal pump
• 2 in. male NPSH intake
• 1-1/2 in. male NPSH discharge
• Direct-drive system
• Backpackable frame
• Dry weight: 44 lbs. (20 kg)
• Flexible external fuel connection
• Compatible with the MyWATERAX Pump Dashboard for real-time pump monitoring

Applications

• Wildland firefighting
• Direct attack operations
• Relay pumping
• High-elevation firefighting
• Long-distance water movement
• Remote water supply operations
• Auxiliary and emergency pumping