How many grains of hardness should I set my water softener?

Hardness: 10 grains per gallon. Daily Water Use: 4 People X 75 Gallons per day = 300 gallons per day. Daily Softening Requirement = 10 grains per gallon X 300 gallons per day = 3000 grains per day.

What do the numbers mean on my water softener?

Typically capacity for a water softener is a number from 1 to 99 kilograins. This is the amount of hardness, measured in grains, that the softener can remove before it needs to be re-generated.

How do I calculate how many grains I need in a water softener?

Use the following formula to calculate the proper size:

1. Multiply the number of people in your family times 70 (gallons of water used per day, national average).
2. Multiply the answer by your water hardness in grains per gallon (to convert mg/l or ppm to grains, divide by 17.1).
3. This is your “grains per day” number.

How do I know what water softener setting to use?

The softener capacity is calculated in three simple steps:

1. Convert water hardness from ppm to grains per US gallon. Total Hardness (ppm) = Total Hardness (gpg) Example: 118 ppm TH = 6.9 gpg;
2. Calculate softener capacity in grains.
3. Calculate softener capacity in gallons.

How do I know if my water softener is working correctly?

How To Tell If Your Water Softener Is Working: The Soap Test. Another easy way to check for a malfunctioning water softener is to see if your soap lathers and bubbles. Pure liquid soap (such as Castille) will do this when mixed with soft water. If the water is hard, the same soap won’t function properly.

How do I know the grains of hardness in my water?

If a test for hard water is measured in parts per million or milligrams per liter you can take the total hardness level and divide it by 17.1 to get hardness in grains per gallon. For example if your water test shows 250 mg/L hardness you actually have 14.62 grains per gallon.