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Clean water is very important for life. Provision of clean water is still a problem in Indonesia. 80% of Indonesia's population still consumes water that is not in accordance with health standards. Whether ergonomic water filters knock down for clean water supply is the consumer's interest in water users. This ergonomic knock down water filter all parts are easily removed, carried easily, then reassembled where the location requires water as long as there are waterways to get clean water. The design of this study is comparative and experimental descriptive. Large sample of 30 people who use water filters. Place of Research in the Industrial Engineering Ergonomics Laboratory, PGRI AdiBuana University Surabaya, Indonesia. Data is taken by observation, questionnaire, and experimental results. Data were analyzed using descriptive percentages. The results showed that 73.3% water filter material chose stainless steel. Ergonomic knock down water filters have the ability to reduce levels of total dissolved solids (TDS) from 380 ppm to 156 ppm, down 224 ppm (41%). Conclusions: 1) water filter users have the highest interest in choosing filters made of stainless steel, are easily installed and used ergonomically, and anti-oxidation does not cause corrosion; 2) the water yield from ergonomic knock down water fliter is 41% clearer than before filtering. Suggestion: To implement the Quality Function Deployment of a knock down water filter, ergonomics are expected to be guided by analytical analysis according to the conclusions above.

CAPACITY TO REDUCE TOTAL DISSOLVED SOLIDS (TDS) LEVELS IN THE IMPLEMENTATION OF ERGONOMIC WATER KNOCK FILTERS