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08-13-2007, 09:45 AM
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#1 (permalink)
| | Giant Squid
Join Date: Apr 2007 Location: Louisville, GA Age: 45
Posts: 3,309
   |  New TDS meter
Hey ya'll,
I just got in a very simple TDS meter and I checked my ro/di and it's 33. I then checked my tap water and it's 77. The ro/di was installed NEW on May 24th of this year. Is this thing working correctly? This may be where I'm getting all the algae from...... | 
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08-13-2007, 12:14 PM
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#2 (permalink)
| | Eyelash Blennie
Join Date: Sep 2004 Location: Lakeland, Fl
Posts: 1,294
 
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That doesn't sound right. My tap water is about 170 and my ro/di output water is about 4 ppm. I think there is a problem somewhere.....
Jim
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90 Gallon glass, 135#'s of rock and 2" sand. 2-250w 20k XM metal halides. 2-95 watt actinic VHO, 4 powerheads, Coralife skimmer. Maroon Gold Striped Clown, Blue Chromis, Kole Tang, Pygmy Angel, Serpent Star, Brittle Star,Gorgonians, Mushrooms, Yellow Polyps, Turbo Snails & Blue Legged Hermits. 20 gal sump with Caulerpa, Mag 7 return pump. | |
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08-13-2007, 12:40 PM
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#3 (permalink)
| | Spanish Shawl Nudibranch
Join Date: Dec 2006 Location: Florida
Posts: 85
Karma: 45
 
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Wow, I live in Jacksonville FL and my tap measures 478 TDS, my filter reads 0. I think it is alot of calcium. Hope it is safe! _________ 40g display, 15g sump, 10g fuge, coralife super skimmer, 40lbs seaflor special, 5lbs sugar fine LS, 25lbs LR(fiji, and gulf of mexico) 265watt PC with 2 50/50 10k/6.7k daylight, 2 50/50 420nm/460nm actinic, DIY moonlites, DIY auto top off, 32g reserve RO/DI, DIY dosers, research... | |
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08-13-2007, 01:52 PM
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#4 (permalink)
| | 3reef Sponsor
Join Date: Dec 2003 Location: ,
Posts: 68
Karma: 27
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That's definitely not right. It sounds like the TDS meter might be off. Did it come pre-calibrated?
Do you have any nitrates or phosphates in your water? | |
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08-13-2007, 01:59 PM
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#5 (permalink)
| | Spanish Shawl Nudibranch
Join Date: Dec 2006 Location: Florida
Posts: 85
Karma: 45
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I have the Reef keeper system from Air Water & Ice, they included a TDS meter. I have made several measurements of ; bottled water(around 120), My fridge water with its filter(around 250), and my tap(450), and my RO/DI water(0). I have not measured the nitrates or phosphates of my tap water. My filter yes, nill. I have taken to the LFS to see if it is correct also and they agree... | |
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08-13-2007, 03:28 PM
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#6 (permalink)
| | Giant Squid
Join Date: Apr 2007 Location: Louisville, GA Age: 45
Posts: 3,309
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I'm going to try my fridge water too. I just changed the filter a few weeks ago. It did come factory calibrated, or so it says it did. I emailed the guy where I bought both from to see if I hooked it up right or if there is a problem. Haven't heard back from him yet.....Will let you all know the outcome.
Guru...I must have phosphates. I've been fighting a battle of the algae for about a year so i bought the ro/di and it really hasn't changed..maybe gotten worse.
I'm going to check a bottle of water I have too, to see what it says. | |
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08-13-2007, 05:32 PM
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#7 (permalink)
| | Giant Squid
Join Date: Apr 2007 Location: Louisville, GA Age: 45
Posts: 3,309
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OK Aquafina bottled water was 2ppm, ro/di now at 22 after a quick membrane flush, filtered fridge water at 59 and tap water up to 90.....hmmmmmmm anyone know how long you flush the membrane for? I just use it for top offs and water changes. This is the ro/di unit I have. Most of the instructions were in Japanese and doesn't really tell you more than how to hook it up. Aquarium 6st 100GPD Reverse Osmosis RO+DI Water Filters - (item 120149242200 end time Aug-13-07 20:10:36 PDT) | |
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