After you get done running your material place an empty gold
into the water under the bottom end of the sluice with the water still
running.
Slowly lift the sluice still you have it vertical.
Be careful to keep the bottom end of the sluice in the gold pan
so you don't lose any material.
Now take your hose and wash out all the material. Be careful not
to spray too hard so all the material will go into the pan.
Keep washing till all the material is in the pan and none is left in
the sluice.