Atlantic SP1600 Manuel d'instruction - Page 4

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Water Gardens

POND VOLUME
It is important to calculate the estimated water volume before you begin construction,
and then re-calculate final water volume when your project is completed. Estimating
water volume pre-construction is a step that is often skipped by many homeowners
and contractors. A water garden with undersized filtration can prove to be a
maintenance nightmare.
Oasis Skimmer and FilterFalls can accomodate flow rates up to 3900 GPH
and filter ponds up to 1500 gallons in volume.
TO DETERMINE POND VOLUME
Multiply (in feet) the average length x the average width x the average depth to find
cubic feet of pond volume. Multiply cubic feet x 7.48 = gallons
Figure 1.
DEPTH
SURFACE AREA
When using any pond skimmer it is important to keep the surface area (in square feet)
of the pond in mind. Upon start-up, the pump sends water from the bottom reservoir to
the top of the waterfall and/or streambed. The water must then fill, from top to bottom,
the waterfalls and streambed until it eventually re-enters the pond and the water levels
equalize. During water in transition process, the water level of the bottom reservoir is
continually dropping. If the streambed is built improperly, or is built too big, the water level
of the bottom reservoir could drop below the opening in the skimmer before the water
levels equalize. This would result in the pump running dry and starving for water.
This situation can be easily avoided by using the formula provided to calculate the surface
area of your pond. With that number, you can then determine the maximum surface area of
waterfalls and streambed that your pond can accomodate.
TO DETERMINE SURFACE FOOTAGE
Multiply (in feet) the average length x the average width = total square feet of the
pond surface area. Multiply the surface area of the pond x .5 = maximum surface
area for falls
Figure 2.
5'
4
LENGTH
10'
WIDTH
8'
10' x 5' = 50sq ft pond surface area
50sq ft x .5 = 25sq ft stream surface area
3'3"