ammonia in stored rodi ???

Discussion in 'Water Chemistry' started by reeferdude, Dec 27, 2009.

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  1. Screwtape

    Screwtape Tonozukai Fairy Wrasse

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    Is your RO/DI unit's output 0 TDS? What unit are you using and what filters does it have in it? When was the last time you changed all of the filters?
    If you're having ammonia develop in a glass container after a time something has to be getting through your RO filter that shouldn't be. I wouldn't look at using prime you're just bandaiding a problem without fixing the source. You really should be able to find out where this ammonia is coming from.
    Also FYI Prime binds to ammonia and detoxifies it, it will not turn into nitrates eventually AFAIK but you may still get false positive tests from using it so I don't think it's a good solution for anything because then you're operating in the dark as to what the actual levels are.
     
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  3. reeferdude

    reeferdude Fire Shrimp

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    i have the kent maxima deluxe 35gpd rodi filter. 0 tds coming out of filter, 26 going in.still using filters that came with it, i haven't changed filters in over 2 years(because of 0 tds). after reading your post, it makes since that i should change my filters. i want to use the refillable ones from brs but sorta dont know what to get???
     
  4. Screwtape

    Screwtape Tonozukai Fairy Wrasse

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    The only refillable one I would get is the DI, the refillable carbon I think is subpar to the carbon block filters that they sell as well. If you just throw GAC in a cartridge it's not the same as the carbon block filters they sell which have a different structure inside.

    For refillable DI I believe this works with all standard 10" filter canisters.
    10†Clear Refillable Cartridge for DI resin - English
    I like the color changing resin personally gives you an idea of when it's close to used up (but isn't exact).
    Deionization Resin - English

    Also I would check the TDS coming out of the RO membrane before it goes to DI that should give you an idea of how well the membrane is functioning. If you have 26 coming into the membrane you should absolutely have zero coming out of it before it hits DI. Also 26 TDS is extremely low for tap water, are you sure about that? Might be worth doublechecking your TDS monitor as well.
     
  5. bioreefdude

    bioreefdude Fu Manchu Lion Fish

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    i think u have micro organisms living in ur tap water and when u store it they die and create ammonia what size micron filter do u have ?
     
  6. reeferdude

    reeferdude Fire Shrimp

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    i'm not sure about micron size, whatever came with the filter. i bought it new.
    i hope i dont have anything living in my well water, thats kinda scary to think about when drinking a glass of water!!! lol! :eek::eek::eek:
     
  7. bioreefdude

    bioreefdude Fu Manchu Lion Fish

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    might be the case get a micro scope and check it out
     
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  9. AZDesertRat

    AZDesertRat Giant Squid

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    You say you are on a domestic well system? If so I would encourage you to have a basic well scan run at your local environmental testing lab or some state/county health depts do them reasonably. It is alarming to find ammonia or nitrates in a domestic well since it could mean your well is under the influence of a nearby septic system or agricultural runoff. At a minimum have some coliform or E Coli tests done to see if tha tis the case. Ammonia in a well is a whole different story and great cause for concern!

    If your filters are two years old they are way past due for replacement. I too suspect your TDS meter may be giving you false readings with two year old DI resin even at a TDS of 26 going into the RO. As far as replacements get a 0.5 to 1 micron prefilter, a 0.5 to 1 micron carbon block and a refillable DI cartridge with non color changing DI resin, color changing is a waste and is a horrible indicator of resin condition. Make darn sure you disinfect the entire RO/DI system while you have it apart for filter replacements, I can give you directions if you need them, this is important.
    Get some TDS calibration solution and calibrate your TDS meter.

    In the meantime, take another tap water TDS making sure the readings stabilize with the temperature, then rinse it in DI and get an RO only TDS reading before the DI then a final RO/DI sample. Wait several minutes with the probe immersed to allow the readings to stabilize and use a nice clean clear glass drinking water glass with no soap residue or water spots.

    You can find all the filters, DI resin and refillable cartiidge on sale here:
    SpectraPure Customer Appreciation SALE! 20% - 50% off

    In your case I would get the DI-SB-10 SilicaBuster DI cartridge, its designed for well systems which may have silicates, nitrates(ammonia) or phosphates present.

    Get the well tested.......