Help building an RODI unit out of two separate units

[WhatCouldGoWrong71]

I am ordering a 7 stage replacement media package. Currently my 4 stage can do 75G a day. I need to up that to at least 150 gallons. I currently have 1 RO membrane but will add a second.

Question 1) I can't locate a plumbing/tds meter diagram anywhere. People say " just look at BRS's site and copy their photos". Their photos don't show you everything. Anyone have or know of something to show how a 7 stage with two RO membranes are plumbed?

Questions 2) Do I have to scrap my 75G membrane and get 2 150G membranes?

Thanks and as always I appreciate all you folks.

 

[blaxsun]

Here is how their 6-stage system works. What I have seen (not sure if this helps) is configurations where they run the waste water directly into the second membrane. BRS did a video on this and it can save quite a bit of wasted water.

 

[WhatCouldGoWrong71]

THis is what I needed, thank you!