Toilet Bowl Stain

[skyplus]

In the part few months a permanent stain remains in my toilet bowl just where the water enters from the cistern. I have tried bleach and jiff to no avail. Can anyone advise me?

[gingejbee]

Yes there is - if you care to read above.

[jomifl]

Limescale requires an acid to remove it, bleach is alkaline. Vinegar and citric acid will dissolve it but limescale remover gel would work best. As mentioned above you probably have a small dribble from the cistern which evaporates to deposit calcium carbonate. No doubt you are in a hard water area.