Understanding Incremental Processing / Exchange is a VITAL part of becoming a good gold miner and gold prospector. It’s a bit more “advanced”, but an easy concept to understand once your MIND… understands what your EYES… are seeing.
The BASIC concept…
It takes “X” time for a bucket of material “slurry” to run down your sluice. It also takes “Y” time for your “riffles” to process and exchange that material and be ready for MORE. If “Y” exceeds “X” then you have unprocessed slurry running out of your sluice. (Losses)
Matching the two is very important. So matching up FEED RATE to your sluice is critical, or matching the amount / length / area of sluice can also be changed.
The video below should help.