Quote Originally Posted by BuckeyeFieldSupply View Post
Bottom line: If what you are after is reduced waste water, experiment with a different flow restrictor for $4 instead of messing around with a second membrane plumbed in series.
Maybe I am missing something (wouldn't be the first time lol).
The way I read this is: on the cheap you can reduce waste water by using a different flow restrictor but you run the chance of ruining your membrane faster (if I get this correct.The savings upfront by just using a different flow restrictor could be negated later on when you need a new membrane sooner) Am I misunderstanding this?

Plus it still takes forever to make water (I have a 215 and a 60 gallon to make water for so I use a lot and don't want to wait days to get it)

Here's where I am coming from:
I want a lot of water and I want it fast. I don't want to replace DI all the time. I want to reduce waste water. I don't want to have to replace the membranes prematurely.
In my case I found the dual-75 to perfectly fit my needs
(By the way I am also using the things dipan described -booster pump, flush valve, etc.)

That being said I agree that it's nice there are different approaches for different budgets and requirements and something else may fit somebody else's needs better