w a t e r s o f t e n e r - f o r m o d e l s D D 6 0 3 H a n d D S 6 0 3 H
Soft water is required for dishwashing to prevent the build up of scale (lime deposits) on your dishes and in your 
. If hard water is used for dishwashing, you will notice glasses will become opaque, dishes will become spotted or have a white film on them and your dishwasher will become less efficient over a period of time. Tap water above 100ppm must be softened for dishwashing for optimum wash performance.
models DD603H and DS603H are fitted with a water softener which is designed to remove the calcium and magnesium ions that cause water to be ‘hard’. The water softener will automatically remove the hardness from the water using a salt solution. The amount of salt required will depend on the local water hardness. Your local water company will be able to provide you with the information on the water hardness in your local area.
To Ensure Optimum Performance of the Water Softener
The water softener must be set to the correct local water hardness and must always be filled with granular salt made especially for dishwasher water softening systems. We do not recommend the use of cooking salt like table or rock salt or pellets as they may contain impurities that will impair or diminish the life of the water softener.
SETTING UP THE WATER SOFTENER |
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Determine the Water Hardness in Your Local Area |
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Identify the setting you require for your | from the water hardness table below. For example, if your water hardness is | |||
500ppm, then the water softener setting on your |
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softener so that the setting corresponds to your water hardness. | ||||
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setting | Grains per Gallon (gpg) | Parts per Million (ppm) |
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0
1
2
3
4
5
0 - 6
6 - 14
14 - 20
20 - 26
26 - 32
32 - 36
0 - 100
100 - 250
250 - 350
350 - 450
450 - 550
550 - 625
Note
If your water hardness is above 625ppm, we highly recommend you completely fill the detergent compartment for all programs except Rinse and the rinse agent setting be at 5. If your water hardness is
above 625ppm, the performance of your 
will decline.
