Modern landscape design is very diverse: alpine hills, rockeries, arches, patios, etc. One of the most complex in the design and maintenance of landscape design elements is a pond and a small pond .
Purification of water in the pond by filtration is the most important condition for maintaining an ecological system in an artificial water body in a stable state. Owners of the territory with a well-equipped water reservoir know perfectly well what an unpleasant phenomenon is the flowering of water, therefore, when installing an artificial reservoir, it is necessary to provide for installation of pumps and filters for the pond in advance.
When selecting a filter for a pond, the following factors are taken into account:
- the size of the reservoir;
- climate in the area;
- power of pumps.
The most difficult to choose filters for ponds with fish. The fact is that fish, like any living natural object, use oxygen and secrete the products of vital activity, so a filter with a certain margin of performance must be selected to clean the populated reservoir. After all, in order to enrich the water with air, the circulation of the liquid with cascades and fountains should be provided. Let's try to figure out how to choose a filter for the pond.
Types of filters and their main characteristics
Flow filter
The flow filter for the pond works in tandem with the pump. Contaminated water passes through the container, while cleaning from debris. The porous filter delays the algae, and the bacteria in a separate module destroy the organic matter and chemical compounds that enter the water. Flow-through filters are designed for small ponds with a volume of less than 300 m3. If you have a larger artificial pond, then several filters are required.
Pressure filter
Due to the installation of pressure filters for the pond, the purified water can be fed up to a height of 2 to 5 m, but the processing volume is even less - up to 60 m3. Circulation of water in the pressure filtering device is carried out by means of an electric pump, which is placed on the bottom of the reservoir. Cleaning is similar to a flow filter, but the pressure filter device is more complex, including several chambers and biological modules.
The drawback of the pressure filter is that in order to function properly it needs a sufficient head of water, which can only be provided by more powerful and energy-intensive pumps.
Sand filter
In the market there are inexpensive sand filters for the pond. Is it worth buying such a cleaning system? Instead of a special biofilter, a sand filter is installed in the device. In the process of exploitation, sand is constantly clogged, because there fall organic waste, which, when decay, secrete a lot of bacteria. After a certain time, the device, which must be a water purifier, starts to clog up the water, releasing methane, hydrogen sulphide and other harmful gases.
Skimmers
Often sellers recommend in addition to the cleaning system to purchase skimmers - floating filters for the pond. The device cleans the surface of water from twigs. leaves and other large debris, which are lowered to the bottom, gradually decompose. The skimmer can only be used in conjunction with a flow or pressure filter.
For inhabitants of country houses and owners of garden sites it is very important to observe the aesthetics of the site, so they will like that the filter for the garden pond can be hidden - bury. Many brands of modern cleaning devices provide for this possibility. A hidden instrument on top can be masked with a decorative house for gnomes, a ceramic frog, and so on.