Reports

Shake and wash

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I tried shaking dark gravel to clean. I changed murky water in a PET bottle. The photos shows the phases. Shaking times were 1h25mim, 1h25min, nearly 3h. It smelled algae strong at phase 1, when I opened a cap of the bottle. I suppose the gravel deposited algae or somthing for 10 years.

Before
Fig.1 Before
1
Fig.2 Phase 1
2
Fig.3 Phase 2
2
Fig.4 Phase 3

Gravel did not seem green before shakes at all. The gravel was dry for winter. Plants like algae are tough to dry up, I think. The shaker is effective to clean gravel. Motion picture shows how the polisher works and gravel is washed.


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