Reducing biofilm in swimming ponds 💡

What is a biofilm?

A biofilm in a pond is a complex micro-ecosystem consisting of bacteria (degradation of organic matter, nitrogen cycle), microalgae and cyanobacteria (photosynthesis, colouration), fungi and yeasts (decomposers of heavy plant debris), protozoa such as ciliates and amoebas (bacteria eaters) and microorganisms such as nematodes and small crustaceans (grazers, food source for fish).

Embedded in a protective mucus matrix (EPS), they form a stable, resilient community that breaks down nutrients, binds oxygen, relieves the water and at the same time forms an important basis for the food web in the pond.

Biofilm in swimming ponds & natural pools

The biofilm in natural ponds is a thin, slippery film on stones, liners or concrete and is completely normal. It may be unsightly, but it is not a sign of poor water quality. It is only important that it does not become excessive – i.e. thick, greasy layers or strong odours are more likely to indicate an excess of nutrients.

Algae settle on the biofilm and adhere to it. The biofilm layer is sticky and provides algae cells with ideal adhesion surfaces. Especially in sunny areas, algae use the biofilm as a "base" to attach themselves and grow.

Diatoms and green algae grow in thin layers directly on the surface of the biofilm. Blue-green algae (cyanobacteria) can accumulate in the biofilm and make it even more slimy.

Why does a biofilm form?

Why does biofilm form? As soon as water comes into contact with natural surfaces (stones, films, wood, plants, walls), microorganisms settle on them. Together with algae and a layer of slime, these microbes form biofilm.

Positive functions in swimming ponds

Water purification: Bacteria in the biofilm break down organic matter (e.g. skin particles, leaves, pollen).
Nitrogen cycle: Pollutants such as ammonium and nitrite are converted into less problematic nitrate.
Food source: Microorganisms eat the biofilm, which in turn is eaten by fish or insect larvae – it is therefore part of the food chain.
Protection: The biofilm stabilises the microbiome and prevents unwanted germs from spreading uncontrollably.

Reduzierter Biofilm mit der Klick-Technologie

Biofilm and algae formation reduced

The intelligent click technology destroys algae (green, brown and filamentous algae) that adhere to it. Image on the left: The green coating is visible and reduced by up to 90%.
Blue-green algae (cyanobacteria) and pathogens (e.g. Escherichia coli bacteria) can accumulate in the biofilm and cause additional slime formation. The clicking sounds attack the hollow-bodied bacteria and provide protection against disease.

<- Algae growth in the acoustic shadow, to the right of the wall light.

The significance for swimming ponds, natural pools and ponds

A biofilm is normal and part of the ecosystem. However, if there are too many nutrients in the water (fish faeces, pollen, leaves, sunscreen, overfertilisation), the biofilm and algae growth can increase significantly.

G-Sonic devices at a glance

High-precision click signals put algae and bacteria under stress underwater. Successive clicking sounds cause the hollow bodies of the cells to vibrate continuously. The resonance vibrations damage the cell walls and hollow bodies of the algae cells, causing them to die naturally and without the use of chemicals.

💡 Tip: The G-Sonic helps to keep the maintenance low, due to permanent reduction of algae and biofilm growth. The natural pond floor, walls & stairs will be less slippery as no algae adheres on the biofilm.

G-Sonic 10 S Algenfrei Gerät für Schwimmteiche, Naturpools

G-Sonic 10 - Ultrasonic algae control for garden ponds

G-Sonic 10 Ultrasonic algae control for algae-free garden ponds The G-Sonic 10 Ultrasonic algae control prevents algae growth in ponds, biotopes, garden and fish ponds, koi ponds or small pools up to 10 m length. With its sound range of up to 10 metres, the G-Sonic 10 ensures that algae no longer grow under normal conditions and existing algae die within a few weeks: Floating algae 1 week Blue-green algae, green algae 3 to 4 weeks thread algae 6 to 8 weeks 2/3 biofilm layer reduction Technical specifications Power consumption 15 WattPower requirements: - 12 - 24 volt DC for battery version- 88 - 264 volt AC, 47 - 63 Hz for mains electricity with 1m power cord, connector Click generator Signal cable length 5 m with plug 3-pole IP68 Electronics box dimensions LxWxH 130x130x60 mm (IP67, Fibox PC 125/60 HG) Click generator stainless steel, dimensions LxDiameter 130x52 mm (IP68) Click generator mounting Sound range 10 meters, 5 meters on each side Weight 2.2 kg EU quality product 2 years warranty The advantages at a glance Scientifically proven effectiveness against all types of algae: existing algae die within a few weeks Ecologically friendly to the environment, no algae agents, chemicals are produced Freshwater habitants are not affected by the clicking sounds Low power consumption thanks to intelligent technology The devices are maintenance-free, have a high quality and a service life of up to 10 years More leisure time thanks to reduced maintenance requirements Installation The G-Sonic ultrasonic algae control can be installed quickly and easily within minutes. Please note the information in the checklist & operating instructions, as well as frequently asked questions (FAQ): Checklist for optimum success Operating instructions FAQ - Frequently asked questions Algae free consulting Depending on the size of the pond, biotope, garden or swimming pond, the correct position of the click generator is of utmost importance. We will be happy to advise you free of charge and determine the optimal position for the click generator. Just send us a few pictures with the measurements via our contact form Algae free consulting.

€975.00*

G-Sonic 10 S Ultrasonic algae control for swimming ponds

G-Sonic 10 S Ultrasonic algae control to keep swimming ponds free of algae The G-Sonic 10 S Ultrasonic algae control prevents algae growth in swimming ponds, natural pools, up to 10 m in length. Specially designed for swimming ponds, the G-Sonic 10 S sends only 12-24 Volt DC signals to the click generator under water and fulfils the swimming pond standard DIN VDE 0100-702. When swimming, interval-like click tones can be heard at best. With its sound range of up to 10 metres, the G-Sonic 10 S ensures that under normal conditions no more algae are produced and existing algae die off within a few weeks: Floating algae 1 week Blue-green algae, green algae 3 to 4 weeks thread algae 6 to 8 weeks 2/3 biofilm layer reduction Technical specifications Power consumption 15 Watt Compliance with the swimming pond standard VDE 702-100 (24 Volt signals to the click generator)Power requirements: - 12 - 24 volt DC for battery version - 88 - 264 volt AC, 47 - 63 Hz for mains electricity with 1m power cord, connectorClick generator Signal cable length 5 m with plug 2-pole IP68 (max. can be extended to 20 m, see accessories folder) Electronics box dimensions LxWxH 130x130x60 mm (IP67, Fibox PC 125/60 HG) Click generator stainless steel, dimensions LxDiameter 130x52 mm (IP68) Click generator mounting Sound range 10 meters, 5 meters on each side Weight 2.2 kg EU quality product 2 years warranty The advantages at a glance Scientifically proven effectiveness against all types of algae: existing algae die within a few weeks Ecologically friendly to the environment, no algae agents, chemicals are produced Freshwater habitants are not affected by the clicking sounds Low power consumption thanks to intelligent technology The devices are maintenance-free, have a high quality and a service life of up to 10 years More leisure time thanks to reduced maintenance requirements Installation The G-Sonic ultrasonic algae control can be installed quickly and easily within minutes. Please note the information in the checklist & operating instructions, as well as frequently asked questions (FAQ): Checklist for optimum success Operating instructions FAQ - Frequently asked questions Algae free consulting Depending on the size of the pond, biotope, garden or swimming pond, the correct position of the click generator is of utmost importance. We will be happy to advise you free of charge and determine the optimal position for the click generator. Just send us a few pictures with the measurements via our contact form Algae free consulting

€1,075.00*

G-Sonic 20 S Algenfrei Gerät für Schwimmteiche, Naturpools

G-Sonic 20 Ultrasonic algae control for ponds

G-Sonic 20 Ultrasonic algae control to keep ponds algae free The G-Sonic 20 algae destroyer prevents algae growth in swimming ponds, natural pools, biotopes, retention water basins. Fights algae blue, green and thread algaeup to 20 m in length. With its sound range of up to 20 metres, the G-Sonic 20 ensures that no algae are produced under normal conditions and that existing algae die within a few weeks: Floating algae 1 week Blue-green algae, green algae 3 to 4 weeks thread algae 6 to 8 weeks 2/3 biofilm layer reduction Technical specifications Power consumption 22 WattPower requirements: - 12 - 24 volt DC for battery version - 88 - 264 volt AC, 47 - 63 Hz for mains electricity with 1m power cord, connectorClick generator Signal cable length 10 m with plug 2-pole IP68 (max. can be extended to 20 m, see accessories folder) Electronics box dimensions LxWxH 130x130x60 mm (IP67, Fibox PC 125/60 HG) Click generator stainless steel, dimensions LxDiameter 120x63 mm (IP 68) Click generator mounting Sound range 20 metres, 10 metres at each side Weight 2.3 kg EU quality product 2 years warranty The advantages at a glance Scientifically proven effectiveness against all types of algae: existing algae die within a few weeks Ecologically friendly to the environment, no algae agents, chemicals are produced Freshwater habitants are not affected by the clicking sounds Low power consumption thanks to intelligent technology The devices are maintenance-free, have a high quality and a service life of up to 10 years More leisure time thanks to reduced maintenance requirements Installation The G-Sonic Ultrasonic algae control can be installed quickly and easily within minutes. Please note the information in the checklist & operating instructions, as well as frequently asked questions (FAQ): Checklist for optimum success Operating instructions FAQ - Frequently asked questions Algae free consulting Depending on the size of the pond, biotope, garden or swimming pond, the correct position of the click generator is of utmost importance. We will be happy to advise you free of charge and determine the optimal position for the click generator. Just send us a few pictures with the dimensions using our contact form Algae free consulting.

€1,325.00*

G-Sonic 20 S Ultrasonic algae control for swimming ponds

G-Sonic 20 S Ultrasonic algae control to keep swimming ponds algae free The G-Sonic 20 S algae destroyer prevents algae growth in swimming ponds, natural pools, up to 20 m in length. Specially designed for swimming ponds, the G-Sonic 20 S sends only 24 Volt DC signals to the click generator under water and fulfils the swimming pond standard DIN VDE 0100-702. When swimming, interval-like click tones can be heard at best . With its sound range of up to 20 metres, the G-Sonic 20 S ensures that no algae are produced under normal conditions and that existing algae die within a few weeks: Floating algae 1 week Blue-green algae, green algae 3 to 4 weeks thread algae 6 to 8 weeks 2/3 biofilm layer reduction Technical specifications Power consumption 22 Watt Compliance with the swimming pond standard VDE 702-100 (24 Volt signals to the click generator)Power requirements: - 12 - 24 volt DC for battery version - 88 - 264 volt AC, 47 - 63 Hz for mains electricity with 1m power cord, connectorClick generator Signal cable length 10 m with plug 2-pole IP68 (max. can be extended to 20 m, see accessories folder) Electronics box dimensions LxWxH 130x130x60 mm (IP67, Fibox PC 125/60 HG) Click generator stainless steel, dimensions LxDiameter 120x63 mm (IP68) Click generator mounting Sound range 20 metres, 10 metres at each side Weight 2.3 kg EU quality product 2 years warranty The advantages at a glance Scientifically proven effectiveness against all types of algae: existing algae die within a few weeks Ecologically friendly to the environment, no algae agents, chemicals are produced Freshwater habitants are not affected by the clicking sounds Low power consumption thanks to intelligent technology The devices are maintenance-free, have a high quality and a service life of up to 10 years More leisure time thanks to reduced maintenance requirements Installation The G-Sonic ultrasonic algae control can be installed quickly and easily within minutes. Please note the information in the checklist & operating instructions, as well as frequently asked questions (FAQ): Checklist for optimum success Operating instructions FAQ - Frequently asked questions Algae free consulting Depending on the size of the pond, biotope, garden or swimming pond, the correct position of the click generator is of utmost importance. We will be happy to advise you free of charge and determine the optimal position for the click generator. Just send us a few pictures with the dimensions using our contact form Algae free consulting.

€1,375.00*

G-Sonic 50 S Algenfrei Gerät für Schwimmteiche, Naturpools, Badeseen

G-Sonic 50 - Ultrasonic algae control for biotope, ponds, small lakes, natural waters

G-Sonic 50 Ultrasonic algae control to keep biotope, ponds, small lakes, natural waters algae free The G-Sonic 50 Ultrasonic algae control prevents algae growth up to 50 m in biotope, ponds, small lakes, natural waters, dredging lakes, irrigation & flood control basins. With its sound range of up to 50 metres in turbid water, the G-Sonic 50 ensures that no algae are produced under normal conditions and that existing algae die within a few weeks: Floating algae 1 week Blue-green algae, green algae 3 to 4 weeks thread algae 6 to 8 weeks 2/3 biofilm layer reduction Technical specifications Power consumption 40 Watt Power requirements: - 12 - 24 volt DC for battery version - 88 - 264 volt AC, 47 - 63 Hz for mains electricity with 1m power cord, connector Click generator Signal cable length 15 m with plug 2-pole IP68 (max. can be extended to 20 m, see accessories folder) Electronics box dimensions LxWxH 130x130x60 mm (IP67, Fibox PC 125/60 HG) Click generator stainless steel, dimensions LxDiameter 150x63 mm (IP68) Click generator mounting Sound range in turbid water: 50 metres, 25 metres at each side (clear water 100 m, 50 m sideways) Weight 3.5 kg EU quality product 2 years warranty The advantages at a glance Scientifically proven effectiveness against all types of algae: existing algae die within a few weeks Ecologically friendly to the environment, no algae agents, chemicals are produced Freshwater habitants are not affected by the clicking sounds Low power consumption thanks to intelligent technology The devices are maintenance-free, have a high quality and a service life of up to 10 years More leisure time thanks to reduced maintenance requirements Installation The G-Sonic ultrasonic algae control can be installed quickly and easily within minutes. Please note the information in the checklist & operating instructions, as well as frequently asked questions (FAQ): Checklist for optimum success Operating instructions FAQ - Frequently asked questions Algae free consulting Depending on the size of the pond, biotope, garden or swimming pond, the correct position of the click generator is of utmost importance. We will be happy to advise you free of charge and determine the optimal position for the click generator. Just send us a few pictures with the measurements via our contact form algae free consulting.

€2,025.00*

G-Sonic 50 S - Ultrasonic algae control for large swimming ponds, ponds

G-Sonic 50 S Ultrasonic algae control to keep large swimming ponds, ponds or small lakes algae free The G-Sonic 50 S Ultrasonic algae control prevents algae growth up to 50 m in swimming ponds, natural pools, large ponds, water basins, small bathing & dredging lakes, irrigation & flood control basins. Especially designed for swimming ponds, the G-Sonic 50 S sends only 24 Volt DC signals to the click generator under water and fulfils the swimming pond standard DIN VDE 0100-702. When swimming, interval-like clicking tones can be heard at best. With its sound range of up to 50 metres in turbid water, the G-Sonic 50 S ensures that no algae are produced under normal conditions and that existing algae die within a few weeks: Floating algae 1 week Blue-green algae, green algae 3 to 4 weeks thread algae 6 to 8 weeks 2/3 biofilm layer reduction Technical specifications Power consumption 40 Watt Compliance with the swimming pond standard VDE 702-100 (24 Volt signals to the click generator)Power requirements: - 12 - 24 volt DC for battery version - 88 - 264 volt AC, 47 - 63 Hz for mains electricity with 1m power cord, connectorClick generator Signal cable length 15 m with plug 2-pole IP68 (max. can be extended to 20 m, see accessories folder) Electronics box dimensions LxWxH 130x130x60mm (IP67, Fibox PC 125/60 HG) Click generator stainless steel, dimensions LxDiameter 150x63 mm (IP68) Click generator mounting Sound range 50 metres, 25 metres at each side (clear water 100 m, 50 m sideways) Weight 3.5 kg EU quality product 2 years warranty The advantages at a glance Scientifically proven effectiveness against all types of algae: existing algae die within a few weeks Ecologically friendly to the environment, no algae agents, chemicals are produced Freshwater habitants are not affected by the clicking sounds Low power consumption thanks to intelligent technology The devices are maintenance-free, have a high quality and a service life of up to 10 years More leisure time thanks to reduced maintenance requirements Installation The G-Sonic ultrasonic algae control can be installed quickly and easily within minutes. Please note the information in the checklist & operating instructions, as well as frequently asked questions (FAQ): Checklist for optimum success Operating instructions FAQ - Frequently asked questions Algae free consulting Depending on the size of the pond, biotope, garden or swimming pond, the correct position of the click generator is of utmost importance. We will be happy to advise you free of charge and determine the optimal position for the click generator. Just send us a few pictures with the measurements via our contact form algae free consulting.

€2,075.00*

G-Sonic 100 Algae killer against blue-green algae, green algae for large water bodies: lakes, dredging lakes, basins, water reservoirs and much more.

G-Sonic 100 - Ultrasonic algae control for large waters

G-Sonic 100 Ultrasonic algae control to keep large ponds, watering basins and lakes free of algae The G-Sonic 100 Ultrasonic algae control prevents algae growth up to 100 m in large ponds, water basins, bathing lakes, dredging lakes, artificial and natural lakes, flood retention basins. With its sound range of up to 100 metres in turbid water, the G-Sonic 100 ensures that no more algae are created under normal conditions and that existing algae die within a few weeks: Floating algae 1 week Blue-green algae, green algae 3 to 4 weeks thread algae 6 to 8 weeks 2/3 biofilm layer reduction Technical specifications Power consumption 75 Watt Sound range 100 meters, 50 meters on each side (clear water 200 m, 100 m sideways) 2 click generators with 15 m signal cable length, 3-pole plug IP68. Optionally up to 4 click generators upgradable (see accessories)Power requirements: - 12 - 24 volt DC for battery version - 88 - 264 volt AC, 47 - 63 Hz for mains electricity with 1m power cord, connectorClick generator stainless steel Electronics box Dimensions LxWxH 410x350x325 mm (IP40) Click generator Dimensions LxDiameter 180x63 mm (IP68) Click generator mounting Weight 5.5 kg EU quality product 2 years warranty Solar power Due to the low energy consumption the G-Sonic 100 can be operated with a 12-24VDC (Volt DC) photovoltaic system. With a battery capacity of 500Ah, you can get along well in daylight (16 hrs/day) and 5 bad weather days (autonomy days). The solar system can be purchased from a specialist in your area. The advantages at a glance Scientifically proven effectiveness against all types of algae: existing algae die within a few weeks Ecologically friendly to the environment, no algae agents, chemicals are produced Freshwater habitants are not affected by the clicking sounds Low power consumption thanks to intelligent technology The devices are maintenance-free, have a high quality and a service life of up to 10 years More leisure time thanks to reduced maintenance requirements Installation The G-Sonic ultrasonic algae control can be installed quickly and easily within minutes. Please note the information in the checklist & operating instructions, as well as frequently asked questions (FAQ): Checklist for optimum success Operating instructions FAQ - Frequently asked questions Extension cable The standard signal cable length for the clicker generator is 15m. The total cable length for all click generators can be extended to a maximum of 100 m.(Example 2 click generators, max. 50m signal cable length per click generator. Example 4 click generators, max. 25m signal cable length per click generator). Stainless steel float In large bodies of water, the water level fluctuates. Here we recommend using the stainless steel float so that the click generator is always positioned 10 cm below the water surface. Stainless steel float Algae free consulting Depending on the size of the pond, biotope, garden or swimming pond, the correct position of the click generator is of utmost importance. We will be happy to advise you free of charge and determine the optimal position for the click generator. Just send us a few pictures with the measurements via our contact form alge free consulting.

From €3,475.00*

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