Tap water
Is my tap water safe to drink?
Almost certainly, if it comes from the mains. In 2025, 99.97% of nearly 3.7 million tests in England met the legal standards, and Wales matched it. When something does go...
Is my tap water safe to drink?
Almost certainly, if it comes from the mains. In 2025, 99.97% of nearly 3.7 million tests in England met the legal standards, and Wales matched it. When something does go...
Why are there blue-green stains in my bath?
Blue-green marks on a bath or basin are copper from your own pipework. New pipe, soft or acidic water and standing water raise it; the 2 mg/l UK limit.
Why are there blue-green stains in my bath?
Blue-green marks on a bath or basin are copper from your own pipework. New pipe, soft or acidic water and standing water raise it; the 2 mg/l UK limit.
How to tell if your house has lead pipes (and w...
Lead pipes in UK homes built before 1970: the stop-tap coin check, the 10 microgram limit, how to flush, and what United Utilities replaces for free.
How to tell if your house has lead pipes (and w...
Lead pipes in UK homes built before 1970: the stop-tap coin check, the 10 microgram limit, how to flush, and what United Utilities replaces for free.
Is there chlorine in my tap water?
Yes, a small amount, on purpose. Water companies in England and Wales must keep a chlorine residual in the pipes, and the DWI says it is typically 0.5 mg/l or...
Is there chlorine in my tap water?
Yes, a small amount, on purpose. Water companies in England and Wales must keep a chlorine residual in the pipes, and the DWI says it is typically 0.5 mg/l or...