QUESTION
TDS levels of RO reject water

I purchased a new RO water purifier system. Bore water TDS level is 650 PPM, after RO purification water TDS level is 70 PPM and reject water TDS level is 180 PPM. My doubt is that the TDS level of reject water is less than the borewell water - is it right or wrong?

by
16 May 2017