Meter Q&A (Commercial) - South West Water

Other matters
for customers with meters
Important – Water heaters
If you have a directly plumbed (or
unvented) hot water heater where
the heated water expands into the
connecting pipework, rather than
into an expansion vessel or similar
facility, the installation of a water
meter may expose this deficiency.
This is because the housing for the
meter includes a non-return valve
which prevents water from
passing back into our mains.
South West Water is not liable for
any problems which may arise
with any of your pipes or other
apparatus due to the fitting of a
non-return valve and in the event
of a problem with your water
heater, South West Water will
not contribute towards repairs.
If in doubt about the effect of a
non-return valve on your system,
please consult your heating or
plumbing engineer.
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