Morton System Saver Water Softeners


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About Sodium and Water

Sodium In Softened Water

Since sodium is added to water softened by the cation exchange process (mechanical water softening), the level of sodium in softened water may be of interest to persons on sodium restricted diets.

The table below shows the amount of sodium added to softened water of varying original hardness. The harder the water originally, the more sodium that is added.

Sodium Added to Water from
Cation Exchange Softening
Initial Water Hardness	Sodium Added By Cation Exchange Softening Of Water
Grains Per Gallon	Milligrams Na+ / gallon
1	30
5	149
6	179
7	209
8	239
9	269
10	298
15	447
20	596
30	894
40	1,191

Contribution Of Sodium From Water Softening To Total Sodium Intake

Assuming a daily intake of 5 grams (5,000 milligrams) of sodium in food and the consumption of 3 quarts of water (used for coffee, tea, food preparation and drinking) the contribution of the sodium (Na+) in the water from the home water softening process compared to the total daily intake can be seen in the following table:

Sodium Intake from Softened Water Compared to Total Sodium Intake

Initial Water Hardness

Grains Per Gallon

Salt in Softened
Water

Milligrams Na+
/ 3 quarts

Salt From Food

Milligrams Na+

Total Salt Consumed

Milligrams Na+

% Of Total Salt From Softened Water

%

1 23 5,000 5,023 0.4%

5 112 5,000 5,112 2.2%

10 223 5,000 5,223 4.3%

15 335 5,000 5,335 6.5%

20 447 5,000 5,447 8.2%

30 670 5,000 5,670 12.5%

40 893 5,000 5,893 15.2%

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