| Category | Cookware |
|---|
A launder that washes river sand apart into iron sand and plain sand; the spoil returns in the byproduct slot.
Obtaining
Usage
Washing it apart
Place a water bucket in the upper left slot and iron-bearing sand below it. When the sand and water are ready, the sand moves into the working slots. Iron sand appears in the middle output, plain sand below it, and the empty bucket above. Faint examples of a water bucket and iron-bearing sand mark the empty input slots. No heat is needed.
Behavior
The middle slots are the launder
Sand in the bright working slots can be recovered, but cannot be inserted directly.
It runs on poured water
A bucket refills the empty reservoir when a batch is ready. Its empty bucket immediately moves to the upper output, and the horizontal bar above the working sand shows the water remaining. Hoppers supply water buckets from above and iron-bearing sand from the sides; a hopper below collects all outputs.
Related guides
In the real world
In western Japan the raw material was won by kanna-nagashi: sluicing a cut hillside into channels so the heavy magnetite settled out. The washing sluice is the wooden launder where that final dressing happened.
Differences in game
Satoyama does not model cutting the hillside or the chain of channels; the whole dressing step is one block.