Test results of so called Ro water?

Discussion in 'General Discussions and Advice' started by Charl_Stanhope, 27 Apr 2011.

  1. Charl_Stanhope

    Charl_Stanhope

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    Ive been using my lfs water for quite some time now and Ive been told that its Ro/Di water. Took some of the water today and had the TDS tested by a shop that sells water and the TDS reading was 225(no wonder Ive been struggling with algae since I stared). The TDS in our tap water is about 240. The water he sells in his shop has got a TDS of 3.

    This is the parametres of his water. Is there anything unsafe for my tank in this water .? Ill only be using like 2 litres of this for top ups as Im using nsw for my water changes. Can I use the water.

    Calcium : < 2
    Sodium < 3
    Potassium as k. whatever that means
    Chloride < 5.
    Sulphate (So4) < 2
    Alkalinity (CaCo3) <5
    Nitrate < 0.3
    TDS 3
    Ph - 6-8
    Iron < 0.1
    Magnesium < < 0.1.


    surely this water is better than the RO/DI (or tap water) my lfs sells me.
     
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  3. RiaanP

    RiaanP Moderator

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    Rather use the water with TDS of 3.

    And let the LFS know that they must replace their RO unit membranes, as I'm sure they are selling crap water to other customers.

    And then, do not support them anymore, unless they up their game.
     
  4. Goby

    Goby

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    now thats very sad, TDS of 225. Are they even running a RO unit? Go for TDS 3 water, more than acceptable!! Anything <5 is :thumbup:.
     
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