Quote Originally Posted by binford4000 View Post
David,number 3 should be smaller then number 2. I actually run two carbons one a 1 mic and the other at 1/2 mic.Using two sediments might be your problem. Also how big is DI cartridge. With your final filter before the membrane that big you are getting allot more waste water then you should be. The dual carbon block will help you get the TDS your looking for. I have several sets if you want to swing by and grab them and see if it helps. You know the #.

Thanks Chuck!
Yes, I see your point and I will take you up on your offer.

So I should go:
1micron sediment
.6micron carbon
.5micron carbon
75gpd membrane
DI 1
DI 2

Currently config that is no longer adequate:
5micron sediment
1micron carbon
75gpd membrane
DI

Also chuck would you install Pressure gauge just before membrane, to know true pressure entering membrane
This I why I love this hobby always learning something new