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Old 01-18-2014, 03:36 PM   #1
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RO/DI help

Hello I just got a tds tester and tested my water and it's reading .18 ppm is that bad I know it should be 0
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Old 01-18-2014, 06:24 PM   #2
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18 ppb is probably not much of an issue. 18 ppm would be. Are you sure it is .18? That is an awfully sensitive TDS meter.
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Old 01-18-2014, 08:54 PM   #3
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I think, it says 0.18 would that be good
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Old 01-18-2014, 08:57 PM   #4
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It reads 0.18 ppm I just check it again so would that be good or bad
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Old 01-18-2014, 09:00 PM   #5
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My bad I think I need glasses there is no point it reads 018 so I'm thinking that's bad lol
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Old 01-18-2014, 10:37 PM   #6
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Yeah that's a problem. Your RODI system is not functioning properly. It should read zero. Time for new filters if they are old, a new membrane if more than a few years old or troubleshooting if it is new.
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Old 01-18-2014, 10:59 PM   #7
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It is, if you have an rodi system you need to change the filters and if not you need to get one
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Old 01-18-2014, 11:36 PM   #8
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If this is just your tap water reading 18ppm isn't terrible. Many successful reef keepers have harder water than that. RODI works really well for reefs but isn't an absolute requirement.
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Old 01-19-2014, 12:14 AM   #9
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In my opinion it is the most important thing to have an rodi water
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Old 01-19-2014, 12:43 AM   #10
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Remember the tds meter has an input and an output I this is takes like 5 to 10 mind of water running through it until it has the correct value. So make sure your reading the output and not the input. If you didn't catch yourself and already made sure.

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