Page 11
ENGLISH
Zodiac
®
Sheer Descent
®
and Fiberfall
®
Water Features
|
Installation and Operation Manual
One of the advantages of the Sheer Descent waterfall is
the ability to provide a continuous sheet of water with
a minimum of water flow. A standard 4 foot model, for
example, requires only 48 gallons per minute (gpm)
to operate. In order to size your pump properly, refer
to the Water Flow Requirement Chart. In most cases,
a properly sized standard swimming pool pump will
operate the Sheer Descent waterfall and filter the pool
with little loss of total water turnover. As a general
rule of thumb, the Sheer Descent waterfall requires
approximately 12 gallons per minute per foot with
little head loss. For a more dramatic effect, more water
gallonage can be applied to project the waterfall further
away from the wall. Refer to Figure 10.
NOTE
When plumbing multiple falls, add the total
length of waterfalls together to determine
GPM required. e.g. When plumbing two 6 foot
units, you now have 12 feet of waterfall, which
requires 144 gallons per minute.
3.1 Existing Pool Filter Pump Installation
The installation of the Sheer Descent waterfall using the
main pool filter pump is the most common plumbing
system, due to the unique low flow aspect of the
waterfall system. Simply plumb a three way valve on
the return line, after the filter, and plumb the waterfall
feed line in a minimum of 1½ inches PVC schedule 40
pipe. Units above 5 feet in length need a minimum of
2 inch plumbing.
3.2 Separate Pump for the Sheer
Descent Waterfall
If multiple waterfalls are being installed, or a Sheer
Descent waterfall 6 feet or longer is being installed,
we recommend installing a separate pump and filter.
Completed Installation - Front
Completed Installation - Back
Figure 9. Finishing the WaterFall Installation
Figure 10. Water Flow Requirement Chart
Feet of Elevation
Feet of Projection
Gallons per minute per foot
Guideline is for 1ft. to 8ft. models
7
1
2
3
1
2
9 1012 15
20
NOTE Do not
install the waterfall
more than 3 feet
above the water
surface or the
laminar sheet will
start to break up.