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. Refer to the chart below for the recommended detergent amounts based on water hardness. 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.

Recommended Detergent Amounts Based on Water Hardness

 

Detergent Amounts

Water Hardness

Prewash

Main Wash

 

 

 

Soft (0-3 grains per gal.)

1 teaspoon

1 to 1-1/2 tablespoons

Medium (4-8 grains per gal.)

1 teaspoon

1 to 2 tablespoons

Hard (9+ grains per gal.)

1 teaspoon

2 to 3 tablespoons

 

 

 

FABRIC SOFTENERS

Fabric softeners are available in several concentrations. We recommend that you use only two tablespoons of

fabric softener. If more softening is desired, try adding slightly more the next time.

FABRIC DYEING

To dye fabrics in your washing machine, pour the dye directly into the drum, not in the detergent compartment. Select Normal wash with the Super Rinse option and use the temperature recommended on the dye package. If you’re dyeing polyester, select a spin speed of 800

rpm.

After you have removed the dyed items, be sure to clean the drum before you wash a load of laundry. Do this by running the empty machine through a Normal wash program using the normal amount of detergent.

RECOMMENDED WASH TEMPERATURES

Different fabrics require different wash temperatures. The table below gives recommended wash temperatures for different fabrics as well as recommended programs, load

sizes, and spin options. These are only suggestions. We recommend that you always refer to the care label instructions (see page 7).

 

Wash

Wash

Load

Spin

Fabric Type

Temp.

Program

Size (1)

Options (2)

White cotton w/out elastic

140–205° F

Normal

Full

Long spin, high rpm

and/or decorative trim

 

 

 

 

White cotton w/elastic

120–140° F

Normal

Full

Long spin, high rpm

and/or decorative trim

 

 

 

 

Colored cotton

120–140° F

Normal

Full

Long spin, high rpm

Linen (white and colorfast)

120–140° F

Normal

Half

Short spin, low rpm

Cotton/polyester blends

105–120° F

Normal/Permanent press

Half

Short spin, low rpm

Polyester/acrylic blends

105–120° F

Normal/Permanent press

Half

Short spin, low rpm

Rayon and acetate

105° F

Delicate/Wool

Half

Short spin, low rpm

Washable silk and nylon

85° F (cold)

Delicate/Wool

Third

Short spin, low rpm

Washable wool and

85–105° F

Delicate/Wool

Third

Short spin, low rpm

wool blends

(cold)

 

 

 

 

 

 

 

 

Handwash wool & silk (3)

85° F (cold)

Delicate/Wool

Third

Short spin, low rpm

 

 

 

 

 

NOTES:

(1)The load size should be determined by the type of fabric being washed. (See page 6.)

(2)Spin speed options are not available on all models.

(3)Some hand-washable wool and silk items should not go through a spin cycle. These items should be removed from the washer then pressed out in a terry towel to remove excess water before being hung up or laid flat to dry.

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Asko W6441 Fabric Softeners, Fabric Dyeing, Recommended Wash Temperatures, Detergent Amounts Based on Water Hardness