| Standards currently being drafted for physical water conditioners
do not reflect the use of these units in real life situations
and threaten to reduce choice for end users, warns the UK Physical
Water Conditioning Association (UKPWCA).
Independent technical experts at BG Technology, as well as
our own experts, have examined this standard and found that
it does not form a good basis for a standard for PWC's for
a variety of reasons. This is at least partly because the
test rig used for the standard has not been developed as a
dedicated rig. Rather, it has been modified from equipment
used for testing other kinds of equipment. In addition the
testing does not address the ways in which physical water
conditioners function, nor are the testing methods representative
of conditions experienced in typical installations throughout
the UK.
In addition, the testing does not address the ways in which
physical water conditions function, namely by ensuring that
scale remains in suspension and is flooded through the system.
This is completely different from a water softener, which
removes scale salts from the feed water, so the effectiveness
of the two mechanisms cannot be measured in the same way.
As the proposed testing only involves very small volumes of
synthetic water over a short period of time, it cannot be
representative of conditions experienced in typical installations
throughout the UK.
As the heart of this concern is the intention of the British
Standards Institution (BSI) to develop a standard for Physical
water conditioners, based on the German model.
The UKPWCA has now established representation on the appropriate
BSI committees and we will be seeking to ensure that PWC's;
get a fair crack of the whip. It is our objective to ensure
that the maximum choice exists so that each specification
is made on technical and environmental merits and nothing
else.
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