TEFAL DT91 Serie Mode D'emploi page 19

50%
Water Water
50%
White Vinegar /
Citric Acid
DESCALING
7
Do this operation in a well ventilated room.
Unlock and remove the water tank.
Remove the water inlet stopper.
Fill the water tank with 50% untreated tap water and
50% white vinegar or citric acid.
Do not use other descaling products.
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