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Customer Care Center
1-800-898-1879
www.askousa.com
Advice and tips before washing
Detergent Amounts Based on Water
Hardness
The amount of detergent needed can vary
due to differences in water hardness. To
determine the water hardness in your area,
contact your local water utility or area water
softening company. The harder the water, the
more detergent you may need.
Remember, you should adjust the amount of
detergent you use by small amounts until you
find the correct amount.
Note that 12 grains and higher is extremely
hard water and detergent alone may not be
enough. You may need to use a water
softener to maximize the performance of your
washer. Also, in areas with extremely hard
water (9+) you may need to wash at lower
temperatures to prevent hard water deposits
from forming in the tank and wash system.
Different brands of detergent have different
amounts of phosphorous for softening water.
If you have hard water and use a detergent
with less than 8.7% phosphorous content,
you may need to use more detergent or use
a detergent with a higher phosphorous
content.