Water Softener Information
Hard water in Canada

Prairie provinces (mainly Saskatchewan and Manitoba) contain high quantities of calcium and magnesium, often as dolomite, which are readily soluble in the groundwater that contains high concentrations of trapped carbon dioxide from the last glaciation. In these parts of Canada, the total hardness in ppm of calcium carbonate equivalent frequently exceed 200 ppm, if groundwater is the only source of potable water. The west coast, by contrast, has unusually soft water, derived mainly from mountain lakes fed by glaciers and snowmelt.

Some typical values are: Montreal 116 ppm,[24] Calgary 165 ppm, Regina 202 ppm, Saskatoon < 140 ppm, Winnipeg 77 ppm,[25] Toronto 121 ppm,[26] Vancouver < 3 ppm,[27] Charlottetown PEI 140 150 ppm.[28]
  1 TO 2 PEOPLE 3 TO 4 PEOPLE 5 TO 6 PEOPLE 7 TO 8 PEOPLE
5-10 GPG 32,000 GRAIN 32,000 GRAIN 32,000 GRAIN 40,000 GRAIN
11-20 GPG 32,000 GRAIN 32,000 GRAIN 40,000 GRAIN 48,000 GRAIN
21-30 GPG 32,000 GRAIN 40,000 GRAIN 48,000 GRAIN 80,000 GRAIN
31-40 GPG 40,000 GRAIN 64,000 GRAIN 64,000 GRAIN 96,000 GRAIN
41-50 GPG 64,000 GRAIN 80,000 GRAIN 96,000 GRAIN 96,000 GRAIN
51-75 GPG 64,000 GRAIN 80,000 GRAIN 96,000 GRAIN 110,000 GRAIN
76-100 GPG 80,000 GRAIN 96,000 GRAIN 96,000 GRAIN 110,000 GRAIN
Water Softener Chart

HARDNESS IN
GRAINS PER GALLON
NUMBER OF PEOPLE IN THE HOUSE
1. Ideal regeneration frequency is 4 to 6 days at 75% of total capacity. Why 75% capacity? 25% reserve capacity is necessary in case of excessive water use from time to time.

Example:
3 people (75 gallons per person per day) in a home avg. 225 gallons of water used per day with 15GPG will need a 32,000 grain system set up for 24,000 grain capacity.


2.
If you need to convert hardness from ppm to Grains per gallon (GPG) divide the total water hardness  by 17.1.


Example:
200ppm of total hardness / 17.1 = 11.69 GPG


3
. If iron is present in your water supply please add 5 grains of hardness for every 1 ppm of iron and determine your size water softener from there.

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Pacific Water Softener
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