Hardness Testing And Setting - Quooker scale control Installation Manual

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Hardness testing and setting

• There are two Scale Control settings: maximum (for 70% hardness reducing)
• Test the water hardness with the test kit as described below to determine the
• For use with a PRO3-VAQ the Scale Control setting should always be maximum,
• For all other types of Quooker tanks, the enclosed hardness table can be used
1
30
ml
25
20
15
10
5
3
30
ml
25
20
15
10
5
and minimum (for 50% hardness reducing). The required setting depends on
your water hardness.
Scale Control setting and the cartridge lifespan.
regardless of your water hardness.
for determining the Scale Control setting. Adjust the setting on top of the
Scale Control head by using a flat head screwdriver as explained in step 4.
2
4
30
ml
25
20
15
10
5
1 Filling test tube
First rinse the test tube with tap water
and then fill it up to 5 ml.
2 Adding reagent
Hold the bottle containing the reagent
directly over the test tube and add
the solution one drop at a time. Shake
the test tube after adding each drop,
to ensure that the dye dissolves prop-
erly. Count how many drops are
required to change the colour of the
water from red to green.
3 Determining
hardness
The number of drops added when the
colour of the water transitions indi-
cates the water hardness, expressed
as a grade of German hardness °dH).
For instance 10 drops indicates a
water hardness of 10°dH. After each
test, rinse the test tube thoroughly
with water.
4 Setting
Choose the desired setting by using
the hardness table. Maximum: Align
the indicator with the whole circle
Medium: Align the indicator with the
half circle ).
).