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Description:Step 3 Add Crushed Stone Step 3, Step 4 Kolin Smith. After smoothing and compacting the soil in the bottom of the trench, line the trench with about 2189 inches of crushed stone pack. Rake the pack to level its surface. Step 4 Compact the Stone Base. Dampen the stone pack by spraying it lightly with a garden hose or watering can.
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