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Old 03-28-2009, 02:09 PM
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Originally Posted by digital-audiophile View Post
My Milwaukee TDS meter is showing me 001 on my RO/DI, but I tested tap water and it is showing 014? This just seems REALLY low and is causing me to wonder if something is up with my meter?
Maybe you're just wishing too hard that you lived on the Island?? Although 14 is a bit high for Victoria
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Old 03-28-2009, 02:30 PM
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Island dreaming indeed!


I picked up a new TDS meter.. one of the units from walmart that everyone was talking about. This morning I tested 247 tap and 0 on my rodi
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Last edited by digital-audiophile; 03-28-2009 at 06:40 PM.
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Old 03-28-2009, 03:27 PM
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Depending on the day mine has been showing 157-187 in and .001-.0 out.
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Old 03-28-2009, 07:07 PM
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in forest heights i usually pull 90-105
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Old 03-28-2009, 09:05 PM
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14 hahahaha Did you really need to ASK if your TDS meter was working? My TDS surges to at least 200 or more when I start up a RO/DI fill. Craziness.

On a somewhat related question .. what kind of TDS are Calgarians pulling AFTER their RO? I bought a new membrane recently and it rarely reads under 5. I'm going through DI resin like crazy as a result. My last one seemed to register 0 or 1 way more often and I'm wondering what's more normal. I'm kind of thinking I got a dud membrane or maybe it's a brand or rejection rating kind of thing.
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Old 03-28-2009, 09:12 PM
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260 in, < 003 out. Queensland

Tony,
Do you flush your membrane? Also, do you have a reservoir tank on your RO/DI? ...and if you run it for a few minutes, then take a sample does it read lower?
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Old 03-28-2009, 09:17 PM
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Yes, I flush it at the beginning of every fill into the reservoir. I don't know if I'm doing this right, but here's what I do: I leave the bypass valve open until the TDS reads <10, it takes quite a few minutes to get down to that level. It might come down to anywhere from 0 to 2, if I wait as long as 10 minutes on the flush, but even then sometimes a couple hours later I'll come check it again and it's bounced back up to 5 or so.
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