They're easier to install than
flexible liners and they make above ground pond installations
easier, too.
Step 1:
Mark The Layout
Choose a flat, open area. You
may also want to pick a location that can be seen
easily through a window from inside the house.
Once you've picked the spot, remove
all the grass and plants. Then turn the pond liner
upside down on that spot.
Using a garden hose, a rope, pegs, or lime
outline the pond liner's shape in the dirt.
I like using spray paint, because the mark stays
put.
Step 2: Dig The Hole
Dig the hole 2 inches deeper and 2 inches
wider than the pond liner. Remove any roots or rocks you come
across.
Use a carpenter's level to judge if the bottom
of the excavated area is flat.
From time to time, drop the liner in the
hole to test that the hole's shape fits the pond liner's
shape.
When you're through, pour 2 inches of
sand into the in the bottom of the hole, then set
the pond liner down in the hole.
Step 3:
Fill & Backfill
You want the lip of the pond liner flush at
ground level.
Pull the liner from the hole if you need to make
adjustments. Sometimes, rocking the pond liner back and forth
slightly can help to settle the pond liner shape in hole.
Now slowly add water to your pond. At the same
time, use sand to back fill the area between the pond liner
and the excavation.
When you're done back filling, pack dirt
underneath the pond liner's lip for support.
Step 4: Add the Edging
Hide the garden pond liner lip with stones.
Place the stones so most of the weight sits on
the dirt instead of on the liner edge.