Quote:
Originally Posted by banditpowdercoat
You mean run them in series? Do I would have the clean water from one membrane go into the other? 2 RO waste drains? Or parralel them?
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Very good question! I actually haven't noticed how these units have run, although I do know that generally having dual TFC membranes is considered "commerical". I did a quick Google, and couldn't find any pictures that were detailed enough to figure out how they are hooked up. I'm very interested to find out as well, as I think I will need to add a second TFC membrane when I move to Saskatoon.
Quote:
Originally Posted by midgetwaiter
Don't wonder, unless you spent some serious $ on your meter the standard deviation is ~ 10ppm.
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I have never heard this before. AquaFX advertises their digital hand held meter as having accuracy +2% from 0-999 ppm.