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Miele PDW 909 Operating And Installation Instructions page 17

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IMPORTANT SAFETY INSTRUCTIONS
Chlorine and component damage
Frequent use of chlorine products increases the risk of damage to
components.
The use of substances containing chlorine, such as sodium
hypochlorite and chlorine bleach in powder form, can result in damage
to the protective layer of stainless steel and corrosion on components.
Therefore, refrain from using substances containing chlorine. Use oxy-
gen-based bleaching agents instead.
If, however, chlorine bleaching agents are used, an anti-chlorine treat-
ment must always be carried out. Otherwise, both the washing ma-
chine components and the laundry may suffer persistent and irrepara-
ble damage.
Anti-chlorine treatment must be carried out immediately after chlo-
rine bleaching agents have been used. Hydrogen peroxide as well as
oxygen-based detergents and bleaching agents are suitable for anti-
chlorine treatment. The suds must not be drained in between.
Treatments with thiosulfates can result in gypsum-like deposits partic-
ularly when used in combination with hard water. This gypsum can
build up in the washing machine or cause incrustations on the laundry.
Treatment with hydrogen peroxide is recommended over treatment
with thiosulfates because hydrogen peroxide neutralizes chlorine.
The exact dispensing quantities and the treatment temperatures re-
quired must be set and tested on site in accordance with the dispens-
ing recommendations of the detergent and cleaning agent manufac-
turers. The laundry must also be tested to check whether it contains
any active chlorine residues.
17

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