Geert Neerinck - Neegro BVBA - Belgium
"We purchased the USAF™ ultrasonic transmitters because our basin was very polluted with algae, we could not even see 5cm deep into the water.
After installation, which was very easy, we soon noticed that the water became clearer and clearer and at one point we could just see the bottom of the basin.
In summer, we saw a slight increase in algae, but this is logical as there is continuous natural supply of algae, but this is also constantly being eliminated by the transmitters. The transmitters always work and require no maintenance, so a very welcome addition."