Known as the home of the "Alluvial Sluice", the good people at Prospectors Choice long ago noticed that normal sluicing techniques did not emulate nature in the way that heavier valuable materials settle to the bottom. After much research, testing, and modification they came out with the Alluvial Sluice design. Their varying velocity sluice system very closely mimics nature and it works great with sluicing for gold and gems.
The difference between the Prospectors Choice Alluvial Design Sluice box and nearly every other one on the market is that theirs are built straight. There is no flow difference from the start to the finish. The water’s velocity is the same from head to tail. However, when Prospectors Choice watched nature, they saw she will vary the velocity of a stream or river in many ways, from rapids to waterfalls, bends, wide parts in the stream, back eddies, whirlpools and so on. As any good prospector knows, where the water slows down the gold piles up. The most effective example they took from mother nature is the concept of an Alluvial Fan, or Plain. The dropping from suspension of heavier materials could not be more verified.
Prospectors Choice incorporated this powerful natural technique into their line of sluice boxes. They have made the entire length of the sluice box into one big capture element, improving the rate of extracting the gold from concentrates.