Taps in our bathrooms and kitchens are used countless times throughout the day so is essential they stay clean if you want to stop bacteria spreading around your house. While most people simply give their taps a quick wipe during cleaning, they're often covered in limescale, which is a stain that forms when minerals evaporate from hard water. Limescale will appear as cloudy streaks, which is why it often goes unnoticed, but over time it can build up into a tougher residue that can trap germs,