We can't provide dates, but the G-Series was the last of the Ajax production line for piston pumps. We've had any number of them before, but we haven't always had a tag as we do here to confirm that this is one of the "newest" Ajax pumps in circulation.

In addition to the standard sand-blast and repaint jobs, this pump has been fitted with the following new parts:

• new piston rod complete with three brass nuts
• new piston plates
• new centre plate
• gland nut
• wet-end maintenance kit (buckets, valves, springs, gaskets and packing)
• pinion and shaft
• gear case baffle
• aluminium pulley - 2V, A-section, 14"

This pump's maximum head is 250 feet. To pump to that height, you will a need 1 hp (electric) motor. Being an A3, or a 3" x 4" pump, this unit has 1.5" suction and discharge. At 50 strokes per minute or 250 rpm at the pulley, this pump will produce just under 600 gallons per hour.