Worth getting a type of water softener? if so which one?

Discussion in 'Water Chemistry' started by gregalon, 6 Apr 2011.

  1. gregalon

    gregalon Member

    Joined:
    22 Feb 2011
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    Hello I am looking to find a chemical to soften my water. Which one should I get? I live in London so my water is quite hard and I don't want to use RO for two reasons, expensive and waste of water (takes 10 litres of normal to make 1 litre of RO).

    WHich products to you recommend?
    thanks greg.
     
  2. roadmaster

    roadmaster Member

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    18 Oct 2009
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    United States
    Considering your climate,, I might be tempted to cut the water with filtered (carbon) rain water.
     
  3. ceg4048

    ceg4048 Expert/Global Moderator Staff Member

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    Chicago, USA
    Hi,
    Unless you are trying to breed soft water fish I suggest you simply carry on using London water which is excellent for growing plants. There is no advantage in using soft water for plants.

    Cheers,
     
  4. dw1305

    dw1305 Expert

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    7 Apr 2008
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    nr Bath
    Hi all,
    You can't really soften hard water if it has a lot of dKH buffering. The problem is that if you exchange the sodium ions for calcium ions (with a commercial water softener) or add an acid (H+ ions) (to balance the alkalinity (OH- ions)), or use a "pH down" buffer you are adding to the TDS, and acid water with a high TDS is very different from soft water with low pH, dKH and low TDS.

    If you can't use rain water you are best sticking to tap water and keeping away from those fish that need soft water.

    cheers Darrel
     

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