Thanks for making the video but there are two technical flaws: 1. The filter candles clearly state that they need to be washed with RO water, some for 10 minutes some for an hour. So it would be better to just set-up the water purifier and let it run for two cycles without consuming the water. Why would you want to put high ppm water and screw up the final output? Secondly, there is no need to detach all candles and risk damaging the filter. One should just pull out the RO membrane container which I was able to do successfully. Thirdly, what is the point of an RO purifier if the original TDS is low (not even 150ppm)? Under the circumstances, i wouldn't fully trust this video. This is a common issue in a country where middle jobs are not paid well and public education is weak. People don't develop critical thinking and experts are not experts. But thanks for making the video: A for effort.