Dosing in ro top up water

Discussion in 'General Discussions and Advice' started by vatso, 24 Jan 2010.

  1. vatso

    vatso

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    I want to dose using my ro top up water I use every day

    What can I put together & what can't I?

    I want to put in my KH buffer 10ml & CA 5ml & MG 5ml in my RO water & let the dosing happen when I top up which is 5lt every day some in the morning & some at night

    can I do it this way?

    Remember I don't have a sump
     
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  3. jacquesb

    jacquesb Retired Moderator

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    That should be 100% fine, Vatso.....
     
  4. Reef Maniac

    Reef Maniac MASA Contributor

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    How's your high-school chemistry ;)

    You should only add either anions or cations to the RO, but not both.

    In short, you could add EITHER the alkalinity (sodium carbonate/bicarbonate) OR the calcium chloride (turbo calcium) and magnesium chloride/magnesium sulphate - NEVER mix the alkalinity and calcium, or alkalinity and magnesium, all you will do is to precipitate calcium carbonate or magnesium carbonate (both pretty insoluble in sea water).

    You could also add your slaked lime (kalkwasser) to the RO, although I would not recommend it, but then you should not add anything else to the RO, as the high pH will cause undesirable reactions.

    Hennie
     
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