C
Hardness table (for systems before October 2017)
– The left side of the table shows 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 in use. For continuous optimum performance replace the cartridge before 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 R Meter. This sounds an alarm signal when the cartridge needs to be replaced.
Section E describes how to install this meter.
Cartridge 1
Lifespan
Installation date
Replacement date
Cartridge 2
* The cartridge lifespan is based on the
average consumption of Quooker water
for each type of Quooker tank:
PRO3 B and PRO3 E tank, 3 litres / day;
PRO7 E, 7 litres / day;
COMBI E, 8 litres / day.
Total hardness (°dH) * Cartridge lifespan (in months)
Mains water
10 37 16 14
21 17 7 6
11 33 14 12
22 16 7 6
12 30 13 11
23 16 7 6
13 28 12 11
24 15 6 6
14 26 11 10
25 15 6 6
15 24 10 9
26 14 6 5
16 23 10 9
27 14 6 5
17 22 9 8
28 13 6 5
18 20 9 8
29 13 6 5
19 19 8 7
30 12 5 5
20 18 8 7
COMBI EPRO7 EPRO3 B / PRO3 E