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Toilet Bowl Mineral build up and Rust Stains

  1. #11

    Join Date
    Oct 2006
    Location
    Sarcasm - because beating the crap out of people is illegal
    Posts
    14,656

    For the mineral deposits (may work in the rust stains too but no experience of that) use a pumice stone or two, and a million gallons of elbow grease. Rub hard enough to remove the mineral deposits but not so hard as to scratch up the loo.

    Pumice stones cost only a few dollars. Check out JHC and the like for larger ones.


  2. #12

    Join Date
    Jul 2011
    Posts
    491

    This is what i would do: turn off the water to the toilet tank, flush. Now the bowl is empty, or nearly so. Then dump in a cup of cheap white vinegar, pull on the rubber gloves and pick up the steel wool pad, soapy or not. Get on the knees and get scrubbing using plenty of the mildly acidic solution found in the bowl. After the elbow grease application, turn on the water and flush away.

    Repeat every 90 days=beautiful toilet.


  3. #13

    Join Date
    Apr 2003
    Location
    Hong Kong
    Posts
    943

    Hong Kong uses salt water (for the majority) rust indicates the components inside the cistern are metal, look inside the water tank and change any metal components to PVC or good quality stainless steel - that should stop the rust.

    Since the flushing water is seawater, it is likely that the mineral deposit is salt.

    that pattern of staining indicates it is leaking continuously.

    1) Normally, at the bottom of the tank is a rubber cap / flap to allow water into the bowl (see image below) carefully lift and clean the edges to make sure there is a good seal, if it seats properly that will stop any leakage. if is ancient / perished it is easy to replace.



    2) Check if your tank has internal overflow (like the diagram below) continuous overflowing could be the problem, fixed by adjusting the water level

    Last edited by JAherbert; 13-01-2017 at 10:02 AM.
    TigerSun, TheBrit and shri like this.

  4. #14

    Join Date
    Feb 2015
    Location
    Hong-Kong
    Posts
    2,893

    If the desposit is "mineral" as per the title of this thread, who not simply removing it with hydrochloride acid ?


  5. #15

    Join Date
    Apr 2015
    Posts
    9

    Thanks for the advises guys. Finally got some White vinegar, Citric acid and Baking soda. Got most of the build up off after one go, will repeat again until all is gone ! Finally a clean looking toilet.


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