With the help of RO software, learn to design RO projections. In 20 minutes of video, I am sure you will able to make RO projections. There are various softwares like IMS, wave, lg software , with help of this projection can be prepared.
Also this video gives glimpses of RO in detail. It tells what is RO and how to calculate RO membranes.
RO membranes can be calculated to give clean water manually but there are RO softwares which helps to determine it.
