CrawTec drum filters for water purification in RASs and ponds

Drum filters for RCDs and ponds - reliable mechanical water purification

The drum filter is an automated device for mechanical water purification in closed water supply systems (CWS), ponds, pools, fish farms and other systems where water purity is important. It effectively removes mechanical contaminants, prevents clogging of biofilters and improves water quality without the need for frequent maintenance.

How does a drum filter work?

The principle of operation is based on mechanical screening of impurities. Water enters a drum covered with a fine mesh screen (40 to 200 microns) through which clean water passes and impurities are trapped. When the filter becomes clogged, the automation starts the washing process - the nozzles under pressure wash the sediment into the drainage channel.

Advantages of this method:

1. Automatic flushing - minimal human intervention
2. High productivity - from 10 to 500 m³/hour
3. Durability - durable materials resistant to water and corrosion.
4. Cost-effective - reduces water replacement and system maintenance costs

Where are drum filters used?

Due to their high efficiency, drum filters are used in a variety of applications:

• RCDs (closed water supply plants) - maintain water purity in intensive fish farming systems.
• Industrial fish farms - provide mechanical filtration for trout, sturgeon, catfish and other species.
• Ponds and ornamental ponds - prevent siltation and water colouration.
• Shrimp and crayfish farms - remove feed residues and waste products.
• Water parks and swimming pools - provide crystal clear water, reducing the need for chemicals.

How to choose a drum filter?

There are several key parameters to consider when choosing a filter:

1. Capacity - should match the volume of water in the system.
2. Mesh mesh size - the finer the mesh (40-60 microns), the better the cleaning.
3. Type of construction - the filter can be gravity or pressure.
4. Materials - stainless steel or durable plastic housing provides durability.
5. Automation - the control system should be reliable and convenient.

Why are drum filters better than sand and cartridge filters?

1. Compared to other mechanical cleaning systems, drum filters have a number of advantages:
2. Fast self-cleaning - automatic flushing without stopping operation
3. Minimal energy consumption - operate in stand-alone mode
4. Durability - no frequent replacement of consumables required
5. Flexible - suitable for both large fish farms and small private ponds.

Answers to common questions:

How often should the drum filter be serviced?

• The filter operates in automatic mode and flushing is switched on as it gets dirty. Manual maintenance is limited to periodic inspection and cleaning of the nozzles (every 2-3 months).

What mesh size should I choose?

• For ponds and ornamental ponds usually choose 100-200 µm. For aquariums and fish farms - 40-80 µm.

Can the drum filter be used in open water?

• Yes, but in case of large amounts of organic matter (leaves, sludge) it is advisable to provide an additional pre-filtration system.

Drum filters are an effective and reliable solution for mechanical water treatment in aquariums, fish farms and ponds. They operate automatically, save time and resources, extend the life of biofilters and maintain stable water quality. By choosing the right filter, it is possible to simplify the maintenance of the water body and create optimal conditions for the hydrobionts.