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Designing
a Natural Waterfall
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No
stream would be complete without a waterfall. The most important
thing to remember is that the water goes over the rock, not
underneath it. This is easy to do by sealing the rock to the
liner using (black) expanding foam sealant.
Decide how many waterfalls you want and pick out a piece of
flagstone for each location. Before installing the liner,
adjust the soil so that the rock will fit snug. After each
waterfall location is prepared, remove the flagstones and
put the liner down. Place a bead of expanding foam sealant
on the liner (see
illustration 1) then replace the rocks, packing additional
dirt around them. The bead of expanding foam sealant should
be 2" wide and 1" high. If you use a large rock,
instead of flagstone, the installation is similar to illustration
1 but the expanding foam sealant should be applied behind
the rock (see
illustration 2).
It is not necessary to have a perfect seal, but most of the
water should go over the falls. Some pond builders use concrete
but it does not bond to the liner and takes 24 hours or more
to dry. Using the expanding foam sealant, you can usually run
water after 30 minutes. Concrete will also alter the pH of your
pond. The waterfall stones should be level from side to side
to ensure that the water will flow across the entire face of
the rock. A slight tilt forward will encourage the water to
project further and form a sheet, but too much water will look
unnatural. If the water flow needs to be changed after the installation
is complete, move a few rocks to redirect the water. This change
can be made permanent by turning the water off for a few days
or until the rocks are dry, then foaming the dry rocks in place.
To insure the stability of the flagstone forming the waterfall,
large and very stable rocks should be used for support. Building
from the bottom up, place rocks under the flagstone as though
you were building a rock retaining wall. Carefully stand on
the front of the flagstone to test its stability.
Now that the waterfall is almost completed, you need to foam
in a rock on each side of the flagstone to ensure that the water
is directed down the middle of the waterfall instead of around
the edges.
Before you add all of the remaining stones to cover the liner,
fill the pond with water and start the pump. As the pond starts
to fill, look along both edges, the entire length of the stream,
for any water flowing out. If the water is leaking out the side
or is close to the top, add soil under the liner so the edge
of the stream is 2" to 4" above the water flowing
down the stream. Make sure each waterfall is full and meets
your expectations.
Contact Information:
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| Telephone: 1-888-838-4017 |
Fax: 1-877-878-6813
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Mail Address: Just Liners, Inc.
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P. O. Box 79
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Bogota, TN 38007
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We accept all all major credit cards, certified checks or money orders. |
© 2001 Just Liners, Inc. All Rights Reserved. |
Shipping is not included in product prices unless otherwise specified. |
We only ship within the 48 U.S. Continental States. |
We do not ship internationally due to stricter customs regulations. |
All purchases made within the state of TN are subject to TN sales tax |
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