Do you have a problem with
black deposits in your copper carcass?
Although at first
sight this black dust may appear to be quite harmless, it is a starting to
cause big problems throughout the UK.
Produced by a
reaction between trace amounts of hydrogen sulphide in natural gas, and
domestic copper pipe work. The thin, shiny, black flakes of copper sulphide
break off to be carried along the pipe and into gas appliances, where they
accumulate in valves, filters and injectors.
It is estimated that
21,000 properties may be affected in the UK.