It is used for washing and separating the gold from the sand, alluvial, placer gold mine, river sand gold mine.
It is portable and small, it is suitable for person and small miner go to the river and field to find the gold ore.
It also can be used after gold washing trommel and sluice box.
It is really a valuve tool for washing gold ore! --CGQ Water Canon
Water cannon, used in feeding, clay separation and slurry mixing in rotary scrubber, trommel screen or vibration screener feeding hopper to avoid of mud / clay minerals blocking, stopping flow.