Should I change my salt?

Discussion in 'Water Parameters and Additives' started by Papitto, 26 Feb 2015.

  1. Papitto

    Papitto

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    Hi MASA,

    Just a question on my salt brand RS Coral Pro...
    I have only used this brand, but frankly, its kinda expensive in the long run. With that said, I think its a great salt, so Quality=Price for me.

    What I found I didnt like was:
    1. My WC RO water Ph is 8.3 - but once I start adding the salt, drops the WC Ph to 7.6-7.7
    2. It seems to absorb moisture fast, so my RO system is working hard which means my sediments/filters/membranes are due for a change. (and LOTS of salt-creep)
    3. For best results with this salt, you need to supplement with the full RS program. Expensive maintainence-wise

    If I choose to change my salt.... Have no clue what to change over too. and how slow to make the transition...
     
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  3. TaahirS

    TaahirS MASA Contributor

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    Last edited by a moderator: 26 Nov 2015
  4. OP
    Papitto

    Papitto

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    No, my TO water runs through RO system
     
    Last edited by a moderator: 26 Nov 2015
  5. CameL

    CameL

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    Alot of guys have moved from Red Sea to Seachem, for a variety of reasons, so maybe check out Seachem reef salt
     
  6. Nemos Janitor

    Nemos Janitor

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    This is an interesting statement.
    Can you please explain how you measured your pH in your RO water? :m106:
    I take it the RO water is as it comes out of your RO device and not after treating the RO with kalkwasser etc...

    Will deal with this point first then address the others in turn.
     
    Last edited: 26 Feb 2015
  7. Nemos Janitor

    Nemos Janitor

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    Whilst we await for @Papitto to answer, it might be interesting to hear other views on testing RO water and the reasons for pH changes on mixing salt.
     
    Last edited by a moderator: 26 Nov 2015
  8. irie ivan

    irie ivan MASA Contributor

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    Its late, i'm tired... Come Keith hit that keyboard and explain why RO pH is umm welll... Useless and that its not the salt fault you are topping up more and that having to use the whole red sea program to get the best out of their salt is just marketing.
    I look fwd to reading on the other side of my rizzla.
     
    Last edited: 26 Feb 2015
    NO3, viper357, Rookie and 1 other person like this.
  9. CameL

    CameL

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    I felt the same, especially on a Thursday evening...
     
  10. Toolboysa

    Toolboysa Moderator

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    RO water is supposed to neutral isnt it? So should be 7. Since there is no buffer in RO would introducing a liquid/impurities on a probe not have a huge influence in creating a huge swing in the pH causing a false pH reading?
     
  11. OP
    Papitto

    Papitto

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    Sorry for only responding now...
    I test the RO water for my mixing station, so only the product water from the RO system... I began testing because my Ph(Tank) has never moved from 7.7.
    I use a pen Ph meter to test and it is always 8.1-8.3 for some reason, until I begin adding salt. which drops Ph to 7.7.
     
  12. Nemos Janitor

    Nemos Janitor

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    I will get to the RS additives a little later.

    RO water is not necessarily pure nor does the pH have to be 7. RO water can have high or low pH

    The reason for asking how you test your pH in your RO is because most, if not all, tritation test kits require ionic balance to provide accurate test results. As RO water is stripped of irons the ionic balance is out. Hence an inaccurate test result.

    What is the TDS of your RO/DI water?

    Here is quite a good write up on RO .......it will also give a reason as to why the pH drops when adding salt. :biggrin:

    pH/ORP Measurement for Reverse Osmosis - Yokogawa Global
     
    Last edited: 27 Feb 2015
  13. OP
    Papitto

    Papitto

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    Can I dose kalkwasser to raise my Ph?

    I dont have a TDS meter.
     
  14. 459b

    459b Moderator

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    Kalk will increase pH, but also raise KH and calcium.
    What is your pH?
     
  15. OP
    Papitto

    Papitto

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    7.7 consistently throughout day and night
     
  16. OP
    Papitto

    Papitto

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    I will first try running a long tube from my skimmer venturi inlet to the outside of my house. If it pushes my Ph up, then it will stay that way.
     
  17. 459b

    459b Moderator

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    How are you measuring pH? Odd that it never fluctuates
     
  18. OP
    Papitto

    Papitto

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    Using a Ph pen they sell in all Lfs
     

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