UV water purification against algae in ponds has no effect

Many of our customers (e.g. with koi fish) combine the UVC pond lamps with algae-free devices, since the UVC lamp alone does not guarantee clear water and often only has an insufficient effect against thread algae.

UV Lamp in housing

In a freshly filled pond there are automatically plenty of nutrients at the beginning. Since the algae do not yet have enough competition in the fight for fertilizer from newly planted plants, they multiply explosively. A UVC lamp can destroy floating algae, but not filamentous algae.

If the dead and decomposing algae are not removed from the pond, they decompose within minutes and the nutrients bound in them remain in the pond, where they serve as food for the next generation of algae. There is competition within the algae, namely between floating and filamentous algae. When the floating algae are no longer present, the filamentous algae multiply at the expense of the floating algae. The particularly stubborn thread algae can be killed with the help of the G-Sonic algae-free device , which also combats green and floating algae.

With an UV lamp ultraviolet light is used to destroy and eliminate microorganisms such as bacteria, viruses, fungi and microorganisms in ponds. The pond water passes the UV light where UVA and UVB rays destroy the important micro life inhabitants in pond and pool waters.

Lifetime of Algae-free devices

G-Sonic-50 S für large ponds
Click generator made of stainless steel

The electronic control unit shows almost no signs of wear. To prevent possible damage due to moisture, the electronics should always be installed or stored in a dry place.

The algae eliminator has a life span of 10 years based on experience. The algae eliminators are designed with high quality components to withstand more than normal loads.

The following measures must be taken to ensure a long service life:

  • The G-Sonic can be switched off in winter when it is very cold or on ice.
  • In winter there is a risk of ice and snow pressure, which can cause water to enter the electronics box.
  • The electronics box should be stored in a dry place.
  • In darkness there is hardly any algae cell division and the algae eliminator can be switched off, e.g. from 22:00 to 05:00.
Time Switch
Time Switch
  • In case of a slight algae infestation, you can additionally interrupt the power supply every half hour.
  • Permanent wetness and high temperatures (direct sunlight) should be avoided.

More information

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