Before Using For The First Time; Checking Your Water Hardness Level - LG LD-1481W4 Owner's Manual

BEFORE USING FOR THE FIRST TIME

This model has a water softener to soften hard water.
Please read these notes carefully for correct operation.
In order to provide satisfactory rinsing results, the dishwasher requires soft water, i.e., containing
little or no lime, otherwise water stains will be left behind on the dishes and interior containers.
If the tap water exceeds a certain level of hardness, it must be softened, i.e., decalcified.
This is achieved by adding a special salt to the water softener inside the dishwasher.
The required amount of salt is set up according to how hard your tap water is.
Step 1. Checking your water hardness level
■ Method 1
- Check the water hardness in your area.
(Your water supply management agency can help you with this.)
■ Method 2
- You can check water harness by using test kit included in the product.
① Immerse the test strip for 30 seconds (Not in running water!)
② Shake off liquid from the test kit, and then wait for 1 minute for checking the change of color.
③ Check the setting value applicable to the number of changed colors.
Before test
Number of
the areas
(red-violet) ºd
<4
0
4 -7
1
7 - 14 9 - 17.5
2
14 - 21 17.5 - 26 25 - 38 2.5 - 3.8 100 - 150
3
>21
4
Hardness setting
Under test
< Water hardness level >
Hardness range
mmol/l
ºe ºf
(Ca+Mg)
<5 <7 <0.7
5 - 9 7 - 13 0.7 - 1.3
13 - 25 1.3 - 2.5 50 - 100
>26 >38 >3.8
Softening
Water
system
quality
mg/l
level
Ca
<29 H0
soft
29 - 50 H1, H2
H3, H4
H5, H6
very hard
>150 H7
14
After test
* 2 areas changed
1 ° e = 14.25 mg/l CaCO
°
1 f = 10 mg/l CaCO
° °
1 d = 10 mg/l CaO (=1,78 f) (=1,25 e)
°