Miele G 663 Plus, G 863 Plus Water softener, Before using for the first time, Water hardness

Before using for the first time

Water softener

To achieve good cleaning results, the dishwasher needs soft water. Hard water results in calcium deposits on dishware and in the dishwasher.

If your tap water hardness is above

8 gr/gal (140 ppm), the water should be softened. This takes place automatically in the unit’s integrated water softener.

–Your local water authority will be able to advise you of the water hardness level in your area.

–The water softener must be filled with dishwasher salt for reactivation.

If your water hardness is lower than 8 gr/gal (140 ppm), you do not need to add dishwasher salt.

If there is a fault, it will help the service technician to know the hardness of your local water supply.

^Enter the water hardness below: gr/gal (ppm)

Water hardness

gr/gal*	ppm
1	20
2	40
3	50
4	70
5	90
6	110
7	130
8	140
9	160
10	180
11	200
12	220
13	230
14	250
15	270
16	290
17	310
18	320
19	340
20	360
21	380
22	400
23	410
24	430
25	450
26	470
27	490
28	500
29	520
30	540
31	560
32	580
33	590
34	610
35	630
36-70	650-1260

* US gallons

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