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10-20-2003, 11:13 PM
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#1
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Big Fishy
Join Date: Jan 2002
Location: Martinez, CA
Posts: 568
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DI water smells like dead fish???
My DI water tests 2 PPM with my TDS meter, the cartridge is almost fully discolored indicating time for replacement but with the TDS meter it looks fine. However the smell..... yuck!
Is it time to replace my DI and why does it smell?
Thanks,
Bill
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10-20-2003, 11:41 PM
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#2
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Super Moderator
Join Date: Jan 1999
Location: Southern Oregon, Way West of Dimples ;)
Posts: 22,093
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Wow Bill that doesnt sound good  is it the container or the bucket,bin,barrel, tub. i know some plastics can get funky
Have you checked the carbon prefilters or are you using a mixed bed with carbon DI like a Tap Water Purifier?
__________________
When considering courage in battle, one should remember that there are 2 sides to every conflict.
The heroism of the losing side rarely gets remembered
but we were all husbands and fathers, sons and bros
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10-21-2003, 02:31 AM
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#3
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TRT Staff The Mominator
Join Date: Jan 1999
Location: Just South Of Seattle
Posts: 10,493
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Yuck!
I've used my DI when it was past time to change the media and it never smelled bad.
Strange...
__________________
 "A BRW Original"
Only Dead Fish Go With The Flow... 
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10-21-2003, 05:58 AM
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#4
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Master of Perplexity
Join Date: Jun 2003
Location: panama city beach FL
Posts: 3,431
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Bill. Two questions. What is the pH of the source water for your DI? Are you using an RO in front of the DI?
Whenever I regenerate the anion of a DI, the resin gives off a very strong smell of amine, (which could be described as rotten fish) If the pH of your source is high and you have no RO, or your RO has failed you could get this odor. On the other hand, 2ppm sounds high to me, but I'm not familiar with home units. I'm used to a conductivity of 0.06uS, silica of 5ppb, and sodium of 0.1ppb,
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10-21-2003, 06:52 AM
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#5
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Admin/ Super mod
Join Date: Aug 2003
Location: New Castle, Delaware
Posts: 20,294
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bill,
sounds like a good cleaning is needed. if you are using a holding coontainer check for mold. if you are using tap water to filter then it may be the water itself ...meaning all the chemicals traped in the filter maybe giving off the smell.
good luck
__________________
Tim
need something to read? just ask me.
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10-21-2003, 10:19 AM
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#6
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Big Fishy
Join Date: Jan 2002
Location: Martinez, CA
Posts: 568
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the holding containers are only used once every 4-6 weeks and are stored dry. several different kinds are used and all smell. i do have a RO before the DI. the smell goes away when i add salt mix. my water goes through a water softener, particulate filter, 2 carbon filters, RO then DI. i have no way of knowing my pH of the source water but imagine it is pretty neutral.
thanks,
bill |
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01-19-2004, 07:56 AM
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#7
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Reefman
Join Date: Oct 2002
Location: Ohio
Posts: 68
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DI resins do release amines - which we recognize as the smell of rotting fish. Its not a problem. Watch the TDS in the output water and change it based upon those numbers regardless of the sniff test.
HTH
Blue
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www.BuckeyeFieldSupply.com
200g tank w/ southdown dsb, ~150 lbs live rock, 2 Maxijet 1200, 2 x 400w MH, 2 x 165w actinic blue; 55g refugium with dsb, grape and razor, normal output on 24 hrs, Minijet 404; 44g rubbermaid brute sump. Iwaki 70 pump.
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01-19-2004, 10:29 PM
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#8
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Big Fishy
Join Date: Jan 2002
Location: Martinez, CA
Posts: 568
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blue,
it smelled horrible even though my tds read about 2ppm so i finally changed out the di and the smell was gone!
thanks,
bill
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01-20-2004, 05:49 AM
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#9
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Reefman
Join Date: Oct 2002
Location: Ohio
Posts: 68
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Did you change brands of resin? ALthough I know the resins sometimes smell, I'm not certain why some do more so than others.
Blue
__________________
www.BuckeyeFieldSupply.com
200g tank w/ southdown dsb, ~150 lbs live rock, 2 Maxijet 1200, 2 x 400w MH, 2 x 165w actinic blue; 55g refugium with dsb, grape and razor, normal output on 24 hrs, Minijet 404; 44g rubbermaid brute sump. Iwaki 70 pump.
Last edited by Unresistible Blue; 01-21-2004 at 07:10 AM.
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01-20-2004, 11:30 PM
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#10
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Big Fishy
Join Date: Jan 2002
Location: Martinez, CA
Posts: 568
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don't remember. now i use the pre-mixed kent refill resin. works great.
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