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#1
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![]() I just picked up this TDS meter from Wal-Mart for $15. I read the discussion thread that was posted about a week ago and thought I would try it. My reading on my RO water is 60 ppm. This seems high and was wondering how often people are having to replace their filters on their RO units and at what reading triggers your replacement? Mine has been running for 5 1/2 months now. It was never tested from set-up because I looked around and couldn't find anyplace that sold TDS meters.
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#2
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![]() Do you have DI filter as well? Whats the TDS on your tap water from the tap?
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#3
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![]() I just purchased one as well, although I must say it looks a little different than the one in your photo. The one I have is more rectangular and in addition to the power button it has a 'Read' button. Might be a newer model.
My tap water was somewhere over 200 and I tested a sample of distilled water I had at 003. Don't have a RODI yet so can't comment on that part of your question.
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Mike 77g sumpless SW DIY 10 watt multi-chip LED build ![]() |
#4
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![]() Yes, I have a RO/DI unit. The TDS reading on my tap water was 299 and my RO/DI water was 60 ppm.
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#5
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![]() 60 does seem high. I was told that anything above 5ppm means you should be looking at replacing. Mine is currently at 7ppm and the system is due to get the media replaced.
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#6
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![]() What department are these TDS meters located in?
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"120 Gallon - Fastest Build in the West" 20Gal Sump, 2x 250 PFO Metal Hallides running 2 20k XM Bulbs, 2X54 HOT5 1 KZ Coral Light 1 Fiji Purple, Euroreef RS 100 Skimmer, Quiet One 6000 Return Pump, 2X Tunze 6025, Nano Wavebox ~To Live Is To Reef~
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#7
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![]() The TDS meters were in the Automotive department. They were in the very last isle were the Oil was located (at least in my local Wal-mart).
Last edited by TTT; 02-01-2009 at 04:33 PM. Reason: typo |
#8
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![]() I have the same TDS Meter from Walmart. So far, I've found it to be bang on with my in-line TDS meter from my RO unit
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Mark... ![]() 290g Peninsula Display, 425g total volume. Setup Jan 2013. |
#9
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![]() Just picked one of these up, yikes town water read 868ppm (water comes from underground river in an agro community, scary) In my ro bucket it read 27ppm.
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"120 Gallon - Fastest Build in the West" 20Gal Sump, 2x 250 PFO Metal Hallides running 2 20k XM Bulbs, 2X54 HOT5 1 KZ Coral Light 1 Fiji Purple, Euroreef RS 100 Skimmer, Quiet One 6000 Return Pump, 2X Tunze 6025, Nano Wavebox ~To Live Is To Reef~
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