Sluice Box Gold Recovery

There is a partiality to the surface type of sluice box due to the fact that the recovery rate of gold has at all times been much better. The underwater type boxes do not appear to be much in use any more these days; the surface types appear to be the ones which have taken over. This is the thing that makes the use of any surface type sluice box featuring lighter weight extremely popular. There is a sluice box called the "Super Jet" which does not have need of the use of matting or other porous material to be located under the riffles. This is due to the fact that the box is constructed in one solid piece, solving the problem and hazard of dumping the box and laboriously washing out the matting, this is generally called a clean-up.

Sluice boxes have been designed in just about every configuration which can be conceived. They have been constructed from hollow logs of wood; from boulders which were piled in stream beds; from wood, tin, plastic, you name it. They all have the same design motivation: catch the gold as easily and as speedily as you possibly can. The use of plastic does not cause the gold to be caught more quickly; it only reduces the weight of the sluice, with the ease of transpiration the prime objective.

On the other hand, the riffle design has remained standard for more than two thousand years, even though, on the whole, the slant of the riffle had not been paid too much attention to. Some miners noticed this and dedicated themselves to experimenting with different degrees of slant of the riffles. It has been discovered that a solid perpendicular wall of a true 90 -degree slant stops the weighty solid objects in a much more efficient way than a wall which is slanted at only 85 - 89 degrees, for this reason was the Gravity Trap gold pan patented.