TCP like tastes & odours

If your tap water develops a medicinal, chemical, metallic or TCP-like taste or smell, it is likely that the chlorine in the water is reacting with rubber or plastic components within your domestic plumbing system or in your kettle. The taste and smell is often stronger if the water has been boiled or is left to stand in a glass. This type of taste is not harmful at the levels usually seen in tap water, but can be very unpleasant. Fortunately this type of problem is very easy to solve.