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Drum Filtration
Drum filters are a type of mechanical filtration used in koi ponds and other water features. They work by using a rotating drum with a fine mesh screen to trap debris and sediment from the water. This mechanical filtration effectively removes particles and improves water clarity. Here's a more detailed look at drum filters: How they work: 1. Mechanical Filtration: Water flows into the drum filter and through a fine mesh screen (typically 60-80 microns), trapping debris and sediment. 2. Automatic Cleaning: As the screen clogs, a sensor detects a change in water flow and triggers an automated cleaning cycle. 3. Wash Cycle: The drum rotates, and high-pressure water jets from the outside of the drum blast the screen, removing the debris into a waste chute. 4. Biological Filtration (Optional): Clean water then flows to a separate chamber for biological filtration, where beneficial bacteria break down ammonia and nitrite. Benefits of Drum Filters: Effective Mechanical Filtration: Drum filters are highly effective at removing particles, even very fine ones, leading to cleaner water. Automatic Cleaning: The self-cleaning mechanism minimizes the need for manual cleaning, saving time and effort. Reduced Maintenance: Drum filters can reduce the frequency of maintenance tasks in a pond. Flexibility: Drum filters can be combined with other filtration systems, such as UV sterilizers or biological filters. High Capacity: Drum filters are capable of handling large volumes of water. Factors to consider when choosing a drum filter: Pond Size: The size of the drum filter needs to be appropriate for the volume of water in the pond. Flow Rate: The filter should be able to handle the desired flow rate of water through the system. Screen Size: The size of the mesh screen (micron size) determines the level of filtration. Maintenance Requirements: Consider the ease of maintenance and cleaning of the filter. Cost: Drum filters can range in price, so it's important to consider the initial cost and long-term maintenance expenses. Additional Features: Some drum filters have additional features, such as built-in UV sterilizers.