What should I do if I have mould, slime or stains on my surfaces?See our guidance on how to get rid of moulds, slimes and stains.feedbackWas this helpful? Yes No Please let us know if you have any feedback.Thank you for your feedbackfeedback actions Send feedback Live ChatRelated articles Do you add fluoride to your water? How do I check the water quality in my area? How can I check if my water is hard or soft? What should I do if I have lead pipes? What should I do if my drinking water tastes or smells funny? What should I do if my water's appearance has changed?