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Limescale in toilet pan

Discussion in 'Plumbing and Central Heating' started by Div, 7 May 2004.

  1. Div

    Div

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    Can anyone recommend a product that will remove limescale stains from below the water line in a toilet pan. I've previously removed all the water and tried i) bleach ii) Caustic soda - both were left overnight and then scrubbed but made very little difference. Someone recommended 'spirit of salts' but I haven't tracked down where to buy it.
    Any views/ ideas please?
     
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  3. waran

    waran

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    vinegar is pretty effective on limescale but you might need quite a lot to work in the pan. But it's cheap.

    you can get proprietary limescale removers from most supermarkets which have a similar acidic action.
     
  4. IanDB

    IanDB

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    If my chemistry is right, limescale is calcium carbonate which is alkaline. Caustic soda or bleach won't touch it. You need something acidic to shift it. Vinegar is a very weak acid and I think you'd need a bucket load in the toilet bowl to make an impression. Spirit of salts is hydrochloric acid which is a bit nasty but will definitely do the job.

    I've never bought it over the counter but I assume you can get varying concentrations (i.e. diluted with water). I would have thought that a solution of 10% would do the job.

    In its concentrated form it's oily and you need to wear goggles etc to prevent fumes getting into your eyes (don't breath it in either). :cool:
     
  5. peter anderson

    peter anderson

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    "Limelite" from tescos works very well
     
  6. weargas

    weargas

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    Citric acid monohydrate. Comes in crystal form. Mix it with boiling water and pour into an EMPTY toilet bowl. 15 minutes later, no limescale.
     
  7. Stod

    Stod

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    Sounds OK, but let it cool first?

    FWIW - I've used dilute hydrochloric acid to clear a WC pan of scale - works very well.
     
  8. krispy

    krispy

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    Sounds bizzare but try pouring 2ltrs of cola down the pan and leave overnight this will clear mild amounts of scale !!!
     
  9. taydo

    taydo

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    Not bizzare at all coke has phosphoric acid in it.
     
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  11. Div

    Div

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    Thanks Guys - I have loads of things to try now!
     
  12. Rawk

    Rawk

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    Also harpic (the blue original one), did the job on our loo when we moved in (mums advice :D) - pour it in at night give a swish round and leave it for as long as you can, then scrub it off.

    We had to do it twice.
     
  13. mrspax

    mrspax

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    Any idea where an ordinary joe like me can get these kinds of concentrated acids from. I thought they were really only available to industrial customers and not Joe public?
     
  14. kevplumb

    kevplumb

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    DONT MIX any of them up
    or cleaning the pan might not really be a worry :eek:
     
  15. oilman

    oilman

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    Central heating acid descaler will work. Available everywhere.

    I know of someone who chucked a lump of sodium into the pan, 5 seconds later, no WC!!!!!!!!
     
  16. kevplumb

    kevplumb

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    personally i just squeeze ants :LOL: :LOL: :LOL: :LOL: :LOL: :LOL: ;)
     
  17. sandwell

    sandwell

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    Most supermarkets sell Toilet Cleaner with limescale remover, and they work quite well.
    No need to go hunting for chemicals.
    Kleeneze sell a small block that can be placed in the cistern, and will prevent scale formation for about 12 months.
     
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