Change BRS R/O membranes to parallel questions

FPSD

New member
Bought the 150gpd water saver initially but I have high tds (600). Want to run both in parallel to reduce tds into DI. What do I need? I know how to plumb them but cannot get info on restrictors. Can someone educate me on this. Thanks!
 
I did call Russ. Very nice guy. He instructed me to do exactly what I was going to do. If you have high TDS out of your water and cannot lower it you DO NOT want to run the membranes in series with the waste from one to the input of other. Result is higher tds before DI which I was getting. Changed my configuration and have an output of 8 TDS before DI now. Cut by more than half.
 
For anyone else with high tds issues before your r/o membranes. I managed to lower my tds by more than half compared to the orginal configuration.
 
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