636
HARD WATER AND CLEANIBILITY
With the decrease in water resources over the past few years, the hardness of water has
increased. As the water table goes down, the concentration of salts and minerals in the water
increases. This has caused what is perceived to be a cleaning problem with dishwashers, and is
true for all brands. By having a large concentration of minerals in the water, they are difficult to
remove during the washing process and are deposited on the dishes and tank.
You will hear many descriptions of the ”cleanability problem.” The most common of these
problems or complaints is hard water spotting and a white or tan film on the dishwasher tank
dishes, and glasses. Because the Viking is stainless steel, it is more noticeable than on other
finishes. But, the problem is a universal one.
Complaint:
(1) Dishes are not coming clean.
(2) Dishes and glassware have white spots or film on them.
(3) Dishwasher tank has spots of white film or dishwasher tank is completely covered
with white water scale.
Causes:
(1) Hard to very hard water areas.
(2) Well water with high content of chemicals such as calcium and magnesium carbonate
(lime).
(3) Low water table in draught stricken areas increases concentration of chemicals in the
water supply.
(4) High water temperatures cause chemicals to be released from the water. Viking units
set on high temp will cause more chemicals to be released.
Solutions:
(1) Clean tank of dishwasher first. This can be accomplished by filling the soap dish full
of fresh dishwasher detergent.
a. Place temperature knob in the low temperature no heat dry cycle. Place the cycle
selector knob on heavy and let the cycle finish completely.
(2) Wash dishes at the low temperature and increase detergent level.
a. Hard water – use 2 to 2 ½ tablespoons detergent.
b. Very hard water – use 2 ½ to 3 tablespoons of detergent. (Increase fro extremely
hard water.)
GENERAL INFORMATION
• The Circulation Pump circulates the water at a rate of 52 to 55 gallons per minute.
• The water circulates during Heating.
• 1800 Watt heating element for faster heating times.
• Water is heated to 86° F during the first prewash.
• The drain pump may be cleaned from inside the machine.
• Timed controlled inlet of water.
• 4.6 gallons of water consumed during the normal wash cycle.
• Only 1 tablespoon detergent per normal load.
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