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     Ultra Sonic Algae Control
  Algae control using Ultrasound Waves

How the Ultra Sonic Algae System works

In most basic terms, the algae cells get shaken to bits! In little more detailed terms, the control box of the Ultrasound system has a micro chip that digitally generates a range of ultrasound frequencies. The transducer (under the water) then emits these frequencies as a series of pulses five times per second. As these pulses strike the algae cells they start to oscillate. The cells reach a point where they burst, much like an opera singer smashing a wine glass on the right note!

What happens when algae die and start to dismantle?

The fastest visible results happen with floating algae: These are no longer green when dying but turn to brown instead. Through the internal methane gas they rise to the water’s surface. You may have the impression of having more algae than ever, this is not the case, it is the dead algae cells on the water’s surface.

It happens the same with filamentous algae, although the dismantling process will proceed much slower. The filamentous algae release from the ground and the pond’s side walls and rise to the surface.

The ultrasonic device provides even more: Additionally the bio-film that adheres to the walls and to the ground (the slimy bacterial layer) is removed in a way that the nutrient medium for fungus, pathogenic germs and bacteria is gone.

The Bottle Test

As long as the water is in motion, already dismantled algae may reside in the pond. This happens when fountains or pumps are operating. When ultrasonic devices are used, the floating algae should tear off within seven days. In stagnant water the dismantled algae cells will sink to the bottom.

Before starting the ultrasonic system take a sample of your pond’s water in a clear bottle. The living algae are going to turn the water green within ten days.

Take a sample of the ultrasonic treated water and let it rest for about 48 hours. You may observe the dead algae sunk to the bottom.

Hint: Use a plastic bottle for this test instead of glass, the dead algae will adhere to the sidewalls of a glass bottle.

Installation

The control unit can be installed outdoors. The housing consists of resistant ABS with an IP-67 reading. While mounting the control unit, the connector side must always point down. The unit should be placed at least 1 feet above the ground and should be protected from splashing water. Rising water levels due to heavy rains should never reach the position of the control unit.

Prior to mounting the control unit, make sure main power supply is unplugged.

Mounting the box with screws: Open the box with a screwdriver. Mount the box solidly and tightly to desired location. Then position the top cover back into place. Be sure that the gasket seal is not broken or damaged! If the gasket is damaged do not mount outdoors. Be sure that there is no dirt between the gasket and cover.

Correct positioning of the transducer

Decide the right position of the transducer by finding out which position can treat the largest surface area of the pond/lake. Rely on a beam angle of 180 on the front surface of the transducer. The range for each model is listed below. The relation of length (R1) and width (R2) is +/- 2/1 calculated from the transducer’s forefront (Fig. 6).

The size of coverage area will depend on several factors including the type of algae being controlled.  Simple algae forms like floating algae will be controlled over an area up to the sizes listed above, harder forms of algae will be controlled over a smaller area due to their resistant nature.  Other factors such as pond shape, presence of fountains/aerators, water clarity, weed growth, etc will also affect coverage size and area.  In larger ponds having complex shapes more than one device may have to be used.  Do not place the transducer near a turbulent place like a waterfall, a fountain, near a pump or near the intake/outlet of a filter.

Be sure that the transducer’s front side is always free of obstacles like: Plants, buds, shoots, stones, mud ... a “shadow zone” can be created when the ultrasonic waves get hindered by an obstacle. This may result in partial or total loss of effectiveness. Underwater plants can also reduce the devices ability to reach the proper surface area.

Positioning depth depends on wall structure. When the wall is vertical without plant growth along the bank the transducer may be placed on the ground. When the bank is sloped, the transducer is placed 4" to 8" below the water’s surface (Fig. 12).

Placement of transducer

Always place the transducer horizontally. Place the transducer in a way that it remains in position after the installation. If the transducer is equipped with a float, placement may be done with a thin cord, allowing adequate tolerances due to fluctuating water levels.

Never roll up surplus power cable, lay excess cable along pond bottom in a zigzag pattern. Do not coil excess cable.

Place the supply cable at a place that is safe from mowing machines, hedge trimmers, etc. Never bury the cable without the proper protective insulation. If the supply cable has to be buried underground, follow local electrical codes when installing. Insulate the supply cable by using a conduit for this purpose. Be sure to mark the location the cable was buried and keep a drawing plan of the location with this manual.

Put the plug into the power supply socket. You will notice a gentle “clicking” sound this is the control sound for the transducer. On the control unit there are two indicator lights checking the operation.

Ultra Sonic Algae Control
Item No.
SC-SAC05
Description
Up to 16' x 32' coverage, 10 watts
Price
$829.99
Item No.
SC-SAC10
Description
Up to 32' x 64' coverage, 15 watts
Price
$1379.99
 
Item No.
SC-SAC20
Description
Up to 1/4 acre coverage, 20 watts
Price
$2489.99
 
Item No.
SC-SAC30
Description
Up to 3 acres coverage, 40 watts
Price
$3599.99
 
Item No.
SC-SACEX
Description
30' Extension Cord
Price
$84.99
 
Item No.
SC-SACF
Description
Float
Price
$99.99

 

 

 

 

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