The hand pump ROVATTI is used to remove air from the pump suction line. It eliminates the need to fill the pump with buckets of water. The illustration shows a hand pump for a tractor PTO-driven pump. It is also used for other centrifugal pumps. As shown in the illustration, install and tighten the mounting bolts. If the pump outlet is not equipped with a plug, connect it to the suction pipe on the air inlet on the pump. Close the pump outlet valve on the pump. Open the ball valve under the pump. Remove air from the suction hose by moving the lever up and down. When you see water flowing into the pump, close the lower suction valve and open the pump outlet valve. This product will ensure that your pump is easy to operate.
