Filling The Container For Reactivation Salt; Water Hardness; Setting The Water Hardness - Miele PFD 408 Operating Instructions Manual

Commercial dishwasher

Table of Contents

Water hardness

In order to achieve excellent cleaning re-

sults, the machine requires a supply of soft

water with a low calcium content. Hard tap

water results in the build-up of calcium de-

posits on wash items and on the wash cabi-

net walls.

Tap water with a water hardness of 4 gpg

(4°dH) or more must be softened. This oc-

curs automatically during a program se-

quence in the built-in water softener.

The water softener must be set to the exact

hardness of the tap water (see "Setting the

water hardness").

Your local water authority can give you in-

formation about the water hardness level in

your area.

It is useful to know your water hardness so

that you can provide the service technician

with this information in the event of any

subsequent service calls. Record the hard-

ness of the tap water here:

______________________gpg or °dH

The water softener must be reactivated at

regular intervals. Special reactivation salt is

required for this. Reactivation is carried out

automatically during a program sequence.

If the water hardness level of your water is

consistently less than 4 gpg (= 4°dH), salt

is not required for the water softener. The

water hardness level must, however, still

be set.