Step 7: Create a Rock Border

create a rock border
Photo: Kolin Smith
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Fill the overflow channel with pea gravel for drainage.

Arrange flat rocks along the border so the liner's edge is covered but no more than one-third of each rock hangs over the water. Then cover this first ring of rocks with a second one. Stagger the seams between the stones, and set them back from the edge of the first ring a bit. Arrange and rearrange the rocks until they sit in an interlocking position. Experiment with your outcropping until you have a natural, staggered look.
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    Tools List

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    • pointed shovel
      Shovel
    • four-foot level
      Level
    • 30-foot tape measure
      Tape Measure
    • utility knife
      Utility Knife
    • garden hose
      Garden Hose

    Shopping List

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    1. Pond Liner, which is available off the roll at garden centers or precut in kits. Buy one 4 feet longer and wider than your pond dimensions to fit 18 inches deep.

    2. General Purpose Sand to cover and smooth over stones or roots. Three or four bags should be enough.

    3. Newspaper or Burlap to cover the sand.

    4. Scrap 2x4 to help level the pond.

    5. Pea Gravel to create drainage for overflow.

    6. Large Rocks to create the border and waterfall. Gather them from around the pond or buy them at a stone yard. 7. Submersible Recirculating Pump to keep water aerated and to create a waterfall. Get one that pumps 200 or fewer gallons per minute for a gentle flow.

    8. Air Line Tubing to carry the water to the waterfall. Available at hardware stores or pet stores that sell fish tanks.

    9. 2-inch PVC conduit to protect the buried pump