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Operating log
The German Drinking Water Ordinance, Section 16, requires that an operating log is kept in the fol-
lowing format
Place of installation Road
BWT soft water system type:
Date or
calendar
week
It is not always necessary to complete the operating log, e.g. in private single-family dwellings.
54
:
Water meter at
Water hardness
entrance to
upstream of the
property [m
]
system [dH]
3
City
Water hardness
Difference * 8.2 = concentration
after the
of added sodium as component
system [dH]
of additive sodium chloride
(table salt)
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