Creating an under-current for your sluice or slick plate:

[Mtnmn]

Anyone have any ideas on how to best create an under-current on either a home built sluice or slick plate?

 

[Mtnmn]

To create an under-current on your sluice for catching fine gold, just add some form of a relatively long grizzly just beyond your flare or slick plate. The grizzly will allow your bigger cons to continue traveling down over the grizzly at relatively high speed until reaching the regular setup on the lower half of your sluice. In the meantime much of your finer cons including any small gold will hopefully fall thru the grizzly along with some of the water onto whatever type of material you are using under the grizzly to catch your fine gold and the resulting slower water flow will allow your finer gold to settle and be caught, while carrying most of your remaining lightweight cons out from under the lower end of the grizzly. From there they will rejoin the faster moving cons that were originally above them and then have to go thru a normal sluice setup to catch any remaining gold before finally exiting the bottom of the sluice. I see no reason why the same setup couldn't be done with a slick plate and probably with better results.