Hi, I am sorry to deviate a little from the topic but I need some help. I am a mechanical engineering student in Dubai and I am currently doing a project on RO systems. I have to look into how the feed pressure/operating pressure affects the cost of RO systems and also the operating costs of an RO system. Can anyone help me find some resources? Because I am not finding anything that specifically tells me how the cost is affected by the pressure or the operating cost. Please I would really appreciate if someone could help me. Thank you