Linn-Catalogue 2019-2020

3 LINN AERATION –Healthyponds needoxygen! The oxygen in the supply water is only rarely sufficient for the fish population. This is especially true of ponds with little natural exchange of water. Here, aeration of the water is essential for the well-being of the fish. Pollution of the water by phos- phates, nitrogen and dead plant mate- rial leads to over-enrichment of the water and excessive biological activity, known as eutrophication. Like animals, green plants and algae use oxygen all of the time. However, during daylight, they produce more oxygen than they consume, through photosynthesis. After dark, they no longer produce oxy- gen, and compete with other organisms. This can cause oxygen depletion in the pond, and can kill any fish present. These problems can be overcome and the envi- ronment can be optimised for the fish, by using LINN floating aerators. Not only do all LINN aerators enrich the water with oxygen from the air, they al- so mix and circulate the water, and expel noxious gases such as carbon dioxide. They de-acidify pond water, without the use of chemicals, and create a rich and he- althy environment for plants and animals. They also combat algae, and reduce orga- nic sediments. Their various fountain and water movements enhance the appea- rance of ponds and lakes. We distinguish between two types of wa- ter aerators: Surface aerators These aerators eject the water above the water surface, and offer the most effecti- ve form of water aeration, resulting in the best oxygen input for the energy (power) consumed. Injector aerators Injector aerators create a strong, directio- nal flow, and work underwater, virtually silently. However, these aerators are not as effective as the surface injectors. Note: We use state-of-the-art electric mo- tors. All data in the catalogue correspond to the status at time of printing - subject to change without notice.

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