Instructions for the Dome Science Tech Rock Tumbler

Coarse Tumbling

• 1

  Rinse rocks with water and place them in the tumbler.

• 2

  Add coarse grinding powder and enough water to cover the rocks.

• 3

  Close the tumbler cap tightly and place the tumbler in the machine. Cover the tumbler with the safety dome cover.

• 4

  Push the on/off button and set it to tumble for two to four days.

• 5

  Check the rocks daily. Tumble until sharp points and edges have been smoothed.

Fine Grinding

• 6

  Pour contents of tumbler into a fine strainer and rinse with water. Replace stones in the tumbler.

• 7

  Add fine grinding powder and enough water to cover the rocks. Close the tumbler cap tightly.

• 8

  Place the tumbler in the machine, put the dome cover in place, push the on/off button and set it to tumble for three to seven days.

• 9

  Check rocks daily. Tumble until rocks look shiny when wet.

Rock Cleaning

• 10

  Pour contents of the tumbler into a fine strainer and rinse them with water.

• 11

  Wash the tumbler and clean the rocks with a scrub brush to remove all traces of grit. Replace rocks in tumbler and add enough water to cover rocks. Close the tumbler cap tightly.

• 12

  Replace the tumbler in the machine, put the dome cover in place, push the on/off button and set it to tumble for two hours. This will remove remaining traces of grit in the rocks.

Initial Polishing

• 13

  Pour the contents of the tumbler into a fine strainer and rinse the rocks and barrel with water. Replace rocks in the tumbler.

• 14

  Add polishing powder and enough water to cover the rocks. Close the tumbler cap tightly.

• 15

  Replace the tumbler in the machine, put the dome cover in place, push the on/off button and set it to tumble for at least three days.

Additional Rock Cleaning

• 16

  Pour the contents of the tumbler into a fine strainer and rinse with water.

• 17

  Wash the tumbler and clean the rocks with a scrub brush to remove all traces of grit. Replace the rocks in the tumbler and add enough water to cover rocks. Close the tumbler cap tightly.

• 18

  Replace the tumbler in the machine, push the on/off button and set it to tumble for two hours. This removes any last traces of grit in the rocks.

Final Polishing

• 19

  Pour contents of the tumbler into a fine strainer and rinse the rocks and barrel with water.

• 20

  Clean the rocks with a scrub brush to remove all traces of grit. Grit left on the rocks can scratch polished rocks.

• 21

  Place the rocks in the tumbler. Add final polishing powder and enough water to cover the rocks. Close the tumbler cap tightly.

• 22

  Replace the tumbler in the machine, push the on/off button and set it to tumble for at least four days. Rocks are finished when they appear shiny when dry.