TATA Swach Cristella Plus Water Purifier

The TATA Swach filter is comprised of two parts. The upper portion contains reservoir where the untreated water enters and the lower portion has the TATA Swach Bulb to which the cartridge can be attached. The TATA Swach bulb is densely compacted with processed rice husk ash impregnated with activated silica coated with silver nanoparticles. Another reservoir is placed at the lower end, which collects the filtered water. The system is gravity fed and does not require electricity or constant flow of water. The upper chamber can be easily cleaned. Depending on the quality of water, about 3000 litres can be filtered after which the cartridge can be replaced. Once purifying capacity is exhausted the Swach bulb fuses and prevents water from passing. Both the upper and lower storage containers have a maximum capacity of 9 litres each. The flow rate of the filter is 3-4 litres per hour.

According to the manual, technical support is available by phone 1-800-258-5858 and online. Minimal training required. TATA also provides a manual for operations and maintenance.

3,000 L. No warranty or disposal information given.

The Department of Consumer Affairs (DCA), Ministry of Consumer Affairs, Food & Public Distribution, Government of India conducted comparative testing (CT) of 10 popular brands of non-electric storage water purifiers in India in 2014 which included the TATA Swatch. Some key tests were conducted as per the guidelines based on relevant Bureau of Indian Standards. According to their findings the TATA Swatch was unable to reduce E. coli up to 100 per cent when tested at different intervals. It was able to reduce MS2 virus between 90- 99.99%.

The Comprehensive Initiative on Technology Evaluation (CITE) at MIT evaluated household water filters available on the market in Ahmedabad, India in summer 2014. Their testing indicated that the TATA Swach Cristella Plus was unable to remove higher than 95% turbidity throughout the lifetime of the filter. Full findings are available in this report.

Unknown