There is no fear of environmental
hormones in copper pipes.
The Health and Labour Ministry
has announced that polyester pipes which are highly suspected
of containing environmental hormones(bis?phenol A etc) are being
investigated for leakage. In the Asahi Newspaper, there was also
the shocking headline which read "environmental hormones
from water pipes". The issue of environmental hormones is
getting closer and closer to the consciousness of the people.
Copper pipes, on the other hand, are unrelated
to the issue of environmental hormones and so can be used to transport
hot and cold water safely.
Leakage test with
running water (reported by the Public Health Service)
|Chloride lined Copper pipe
|Polyester lined copper pipe
|Polyethylene pipe for water
|Hard Chlorie pipe