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03-03-2008, 04:48 PM
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#1 (permalink)
| | Giant Squid
Join Date: Jul 2007 Location: Miami, FL Age: 39
Posts: 4,598
 
|  A Tds Meter Question
I just recieved my new TDS meter and was wondering what is an acceptable reading to have from R/O water. I tested my R/O and it came out 100pm. I tested my tap water and it came out 149ppm. So whats acceptable? _________ 9YR OLD 90G/55g custom sump/refug Mag18 Aquac 180skimmer 692w MH AC jr,yel&kole tang,midas&convict blenny,B&G chromies,Blk/yel fin chromie blackcap,nemo,neon goby,6line; Blastomussa Merleti,Acan ,BUBBLE,Torch,LTA, Acropora(2) Moon, assort zoas, yel& G star polyps, P&B ricordia, montiporas, cup&candy corals, xenias,B/G mush,flower ane(2), cherry red mussa, dusters,cleaning crew..  | 
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03-03-2008, 04:48 PM
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#2 (permalink)
| | Panda Puffer
Join Date: Jul 2007 Location: Tatamy, PA Age: 15
Posts: 2,122
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0ppm from what i hear. _________  | 
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03-03-2008, 04:52 PM
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#3 (permalink)
| | Giant Squid
Join Date: Nov 2006 Location: Elizabethtown, IN Age: 40
Posts: 3,421
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Quote:
Originally Posted by lunatik_69  I just recieved my new TDS meter and was wondering what is an acceptable reading to have from R/O water. I tested my R/O and it came out 100pm. I tested my tap water and it came out 149ppm. So whats acceptable? | Seems to me a little high to me. Mine goes in about 290 and comes out 0. Once it gets near 10 I have been changing DI then when it comes up again (about 1 yr.) I change all the filters. I have one of those inline TDS meters. _________ Scott 265g (Peninsula)
3x400w MH's, 4x95w Actinics, AAT Lunar Lights, OM 4-way CL, PM Bullet 3 Skimmer, DelZone Eclipse 1 O3 Generator, WavySea Plus for return, AAT Kalk Reactor, KNOP Ca Reactor w/PM Second Chamber, TradeWinds Chiller, ACIII Controller, Oceanus ATO, PM PO4 Reactor, 75g Sump, 30g Fuge Born March 5, 2007 My 265 Gal. Tank Thread " REAL TIME TANK STATS "   | |
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03-03-2008, 05:32 PM
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#4 (permalink)
| | Torch Coral
Join Date: Jul 2006 Location: valencia,pa. Age: 35
Posts: 1,167
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my $28 tapwater filter takes it from 534 down to 60.something seems wrong there.
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55 gallon reef with 4x54 watt t5,29 gallon sump,red monti cap,1blue echinophyllia,trumpet,red lobo,2 toadstools 1purple and 1neon,gsp,xenia and yellow xenia,red ,many mushrooms,2 giant frilly shrooms,cabbage coral,yellow polyps,many zoos,1 orange and one neon green nepthia,duncans,cladiella | |
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03-03-2008, 05:36 PM
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#5 (permalink)
| | Eyelash Blennie
Join Date: Sep 2004 Location: Lakeland, Fl
Posts: 1,294
 
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My tapwater is about 350 and my ro/di system is a couple of years old and it comes out around 3-4 ppm.
Jim | |
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03-03-2008, 06:05 PM
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#6 (permalink)
| | Giant Squid
Join Date: Jul 2007 Location: Miami, FL Age: 39
Posts: 4,598
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I just tested it again and it came out 10ppm. I let it run a little. And my tap water came out 153ppm
Last edited by lunatik_69; 03-03-2008 at 06:30 PM.
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03-03-2008, 06:53 PM
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#7 (permalink)
| | Skunk Shrimp
Join Date: Aug 2007 Location: Atlanta, GA Age: 47
Posts: 256
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Quote:
Originally Posted by lunatik_69 I just tested it again and it came out 10ppm. I let it run a little. And my tap water came out 153ppm |
Yeah, if its like mine when it was new just run 10-20 gal thru it and it will go to 0. | |
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03-03-2008, 09:41 PM
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#8 (permalink)
| | Skunk Shrimp
Join Date: Sep 2007 Location: Fremont, CA Age: 32
Posts: 287
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Hey Luna, I have a TDS meter....ok, as far as I know and have experienced, RO only water should stay in the 20s or below depending on your water source...RODI on the other had has to be 000, a reading of 001 or 002 from a RODI is still ok, but it's a sign that the resin is almost gone.
Another point...when did you "flush" your RO membrane last? You must flush it at least once a month for at least 10-15 mins. | |
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03-03-2008, 10:03 PM
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#9 (permalink)
| | Fire Shrimp
Join Date: Jan 2008
Posts: 335
Karma: 181
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i really need a TDS meter which one are you guys using? my RO/Di come out to be around 9-15 ppm, dont know thats the right amount or not, but from what you guys said it might seem to be high, but still soft for the fish, i might swap out the DI resin
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55g AGA 55lb LR, 55lb sand, CPR skimmer, magnum 350, koralia 1.
in progress:
120g RR, 40 sump/fuge, panworld 50pxx, 2 x 250 Lumen Bright Reeflux 12k coralvue ballst, 2x54 t5 current usa, 24 led moonlight, shallow sand bed, 2x Koralia 4, around 200lbs rock, msx 200, aquac phosphate reactor... If you see something better out there, let me know. most of the parts still being process. | |
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