One might think that a splash of bleach is the ticket to a spotless toilet, but those pesky discolored stains are mighty immune to such a straightforward fix. Limescale, that irksome deposit left by ...

Toilet bowl stains are a combination of limescale and urine, which react chemically to create a yellowish-brown stain. The longer these deposits linger in your loo, the thicker the layer of limescale ...