6.2
Maintenance of the transducer
Clean the front of the transducer, where the ultrasonic sound waves are emitted, once
a week. Failure to keep the front of the transducer clean will hinder the ultrasonic
waves and ultimately result in reduced effectiveness of your
device.
Always disconnect power from the device before cleaning or handling it.
When the transducer is covered with calcium scale, use a lightly acid solution to
remove it, such as kitchen vinegar.
LG Sonic
®
7 Troubleshooting
7.2 The results appear negative
7.1.1
Filamentous algae (also known as string algae or blanket weed)
It is not unlikely that the amount of algae seems to have grown after the activation of
your
system. This is caused by the reduction of the cohesion between the
algal cells. The cells are thus less closely connected and will fill up more space.
Living filamentous algae feel very much like a wire and are difficult to pull apart. This
changes when the algae are affected: the longer their cells have been dead, the
easier they can be pulled apart.
Filamentous algae rise to the surface when they die, where they form a blanket
causing the ultrasound waves to be absorbed. This blanket needs to be removed as
often as possible, and at least twice a week, in order for the system to continue to
operate correctly.
Algae that grow on the surface of other materials may still be stuck to those surfaces
after their demise, appearing as though they were still alive. However, if they are
relatively easy to remove from the surface they are on, they are in fact dead. This is
not valid for black algae.
Depending on the quantity of the algae, it sometimes takes some time before the
algae appear to be dying (even for cyanobacteria, also known as blue green algae).
A very simple and effective way to test whether the roaming algae are indeed dead is
the 'bottle test'. Fill a bottle with treated water from your reservoir and leave it resting
for 24-48 hours in a quiet place. The bottle should not be closed and daylight should
be included.
If the algae have sunk to the bottom or are now floating on the surface, they are dead.
However, if the water remains greenish and unclear, the treatment has not yet
worked.
Find the next section for instructions.
In a pond, where there is constant water movement (because of wind, fish, filters,
fountains, and so on) it may take weeks before the algae are visibly dead.
LG Sonic
®
7.1.2
Roaming algae
12
EN
The e-XXL transmitters are standard equipped with a wiper.
This cleans the transmitter head automatically.
The wiper can be purchased optionally on the e-Tank and the e-XL.
LG SONIC
LG SONIC
