How do you remove built-up grime, soap scum and limescale from shower screens?

I have tried various cleaners and still have white marks, possibly due to hard water. Limescale, caused by the calcium in hard water areas, affects around 60% of the UK population, says Stephanie Zia, author of Stain Removal (Hamlyn). When hard water is heated, microscopic calcite crystals are formed and start sticking to each other and to any surface with which they come into contact.

Try white vinegar, a natural water softener that also dissolves dirt and grease. Mix equal portions of warm vinegar and salt. Smear thickly over the screen, leave overnight and scrub off the next day.

If this doesn't do it, try a limescale remover such as Cillit Bang Power Grime & Lime Cleaner, but read the label first as some aren't suitable for acid-sensitive surfaces, including etched or matt glass. A product my builders' merchant recommends is HG Hagesan Blue (from specialist builders' suppliers or visit everydayonthe.net). It's a highly concentrated Dutch cleaner with phosphoric acid which removes ... more.

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