We manufacture different kinds of drum thickener/sack de-watering units where the drum acts as the preliminary thickener and the sack discharge the water as the de-watering unit. Bag sizes are 80–1,000 litres. A vessel suitable for the specific use is manufactured for the sacks to discharge reject water into the waste water sewer.

A suitable thickening equipment is delivered for use with these units. The thickening equipment may consist of, for example, a static pipe mixer, pressurised settling tank or a slow mixer fitted with a blade mixer. The sacks are made of jute or plastic cloth.