GETINGE 600 Mode D'emploi page 18

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Water quality
The quality of the water used in all stages of cleaning is important for good results.
The water used in each stage must be compatible with:
* The material of which the washer flusher disinfector is made
* The chemicals used in the process
* Process requirements for the various stages of the process
The main factors for good water quality are:
Hardness
Ionic contaminants
microbial contaminants
sanitary chemicals
Getinge Disinfection AB therefore recommends that water used in the pre-rinsing, wash-
ing and final rinsing phases should be of drinkable quality in accordance with the guide-
lines. Detailed information about acceptable water quality can be found in "Guidelines
for Drinking Water Quality 3rd Edition" published by WHO.
Getinge Disinfection AB also recommends following local standards.
Further advice should also be obtained from the manufacturers of chemical and
medical equipment.
Where local standards are stricter that Getinge Disinfection AB's recommendations, they
should be followed. Note that it is the customer's responsibility to supply the flusher
disinfector with suitable water.
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High hardness will cause limescale deposits in the flusher disinfector,
leading to poor cleaning results.
A high concentration of ionic contaminants may cause corrosion and pitting
on stainless steel. Heavy metals such as iron, manganese or copper cause
instruments to tarnish.
The water used should not increase the biological load on the equipment
that is being treated against micro-organisms and their residual products
which may cause fever-like symptoms when they get into the human body.
High concentrations of and high exposure to sanitary chemicals may cause
corrosion and pitting on stainless steel.