Hardness Table - Quooker Scale Control Plus Installation Manual

B

Hardness table

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•
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Total hardness (°dH)
Mains water
10
11
12
13
14
15
16
17
18
19
20
Lifespan
Installation date
Replacement date
(for systems before October 2017)
The left side of the table shows the reduced water hardness, derived from the mains water
hardness. The right side of the table shows the expected lifespan of the cartridge, derived
from the mains water hardness and the type of Quooker tank used. For continuous optimum
performance replace the cartridge at the end of the lifespan.
Enter the replacement date for the cartridge in the table below. Keeping this table
in a handy place will remind you to order a new cartridge on time.
For Quooker systems installed after October 2017, the life of the cartridge is determined by
the Scale Control Plus Meter. This sounds an alarm signal when the cartridge needs to be
replaced. Part E describes how to install this meter.
* Cartridge lifespan (in weeks)
PRO3
34
31
29
27
25
23
22
20
19
18
17
Cartridge 1
Type of tank
PRO7 COMBI
15 13
13 12
12 11
11 10
11
10
9
9
8
8
7
Cartridge 2
* The cartridge lifespan is based on the
average consumption of Quooker water
for each type of Quooker tank: PRO3,
3 litres/day; PRO7, 7 litres/day; COMBI,
8 litres/day.
9
9
8
8
7
7
6