IBC Water AS36700, Инструкция по установке и эксплуатации

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Page 5
After locating and installing the brine tank in the required position, it is necessary to know
whether a wet or dry salt system is being used. This is done by calculation as follows:-
NOTE: Less salt is required to regenerate a partially exhausted bed per gram of
hardness removed, than that required for a more exhausted bed. For economy
sake, regenerate before full exhaustion.
Calculate time between regenerations thus:-
C
----------- = N
H x Q
Where C = maximum capacity of unit as grams of CaCO
3
= 24000 grams.
H = hardness of water a mg/l or ppm.
Q = amount of water passed through the unit in kilolitres per day.
N = maximum time between regenerations in days.
The calculated value of N should be taken down to the nearest whole number. This is the
maximum number of days, which can be achieved between regenerations.
The amount of salt needed per regeneration, is calculated thus:-
Total hardness removed = N x H x Q = A
Where A = the total hardness removed as grams of CaCO
3
The salt dosage is found on Table 4.
DETERMINE FREQUENCY OF REGENERATION