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How to Size a Water Softener Properly And Effectively

Why should I buy an efficient water softener?

For the world of Waterloo, it is thought that 134,723 household water softeners use about 2.7 billion liters of water and 44,700 tons of salt for softener regeneration per year.

It is same as more than 10 Olympic sized swimming pools having full of water, and 1/3 of the weight of CN Tower in salt.

Dissolved chloride and sodium ions end up drinking water supply and the Grand River supply. To use water for resin, regeneration is the wastage of water resources.

This may seem the flushing money down of the drain; it also affects the quality of water. A good type of water softener costs as much as 400 dollars a year in salt and water to operate.

The average requirement initiated softener at present in the market would cost three people household about 200 dollars a year to do work.

The exact water softener uses less water and less salt. It is good for the wallet, our community, and the environment.

How To Properly Size a Water Softener

Properly adjusted water softener ensures your particular water quality along with water applied to the sufficiently sized procedure which may minimize salt maximize and used soft water capacity.

The main task is to make a proper size of your water softener to measure the daily water softening requirement.

This is the way to remove hardness from your water daily. Regular softening needs calculating your water consumption and water hardness info.

Water Hardness

This is the procedure to know the amount of magnesium and calcium remaining in the water.

It is up to the test to perform the information may be reported in mg / L. Grain/ gallon is the standard of the industry to tell water hardness.

how to size a water softener

Dividing mg/L by 17.1 may convert it to GPG. The Grain of water hardness is same to 1/17000 of a pound.

This is very important to know the type of water hardness if you like to buy a water softener for your home.

Guess the number for an improper size system. If the question comes softener, it may ask for hardness value. When you are in your well, you can measure hardness yourself.

Your life in the city, you will get the water is harder than your locality. Besides, you may get the annual report on online.

As there is the presence of iron in your water, the hardness should be corrected.

For each 1.0 ppm or mg/L of iron, three GPG of hardness requires being added to the sum of hardness value.

Water Consumption

The 2nd factor applied to calculate the everyday softening requirement in your household is called water consumption.

how to size a water softener

The most authentic way to measure that is to see the water bill that indicates total consumption over a period- normally for a month.

You may use this information to detect how much water you use in you house per day or an average.

If you have not this information, multiply the number of people who are living in your house by 75 gallons/day. This will show you the accurate guesstimate of everyday water use.

Now Calculate the Daily Softening Requirement

Extend you everyday water use by water hardness. It implies your Daily Softening Requirement. Below, an example.

Everyday Water Use: 4 People X 75 Gallons per day = 300 gallons per day.

Hardness: 10 grains per gallon

Daily Softening Requirement = 10 grains/ gallon X 300 gallons/day = 3000 grains /day.

From the above, the softener will remove 3000 grains/ day. A softener is generally sized to regenerate about once in a week.

An Example

Use the following formula to calculate the proper size:

Extend the number of people of your family times seventy gallons of water/day. (National average)

Multiply answer of the water hardness in grains/gallon. If you see iron in the water, mix five grains for each ppm of iron.

Iron will be dissolved in iron. It is clear from the tap and leaves reddish brown strain.

This number is the grains per day. Divide the number for each of the softener capacities units that you get the top size.

Note: Having computer control valve, it is easy to include a program for efficient use of salt by adjusting capacity for the lower amount.

Suppose, one cubic foot softener hold peak capacity of 32,000 grains for salt setting 18.5 pounds/ generation.

It gives 1729 grains of softening / pound of salt. You may program it with 24,000 grains of the salt setting of 8.5 pounds of salt, doubling efficiency.

It may regenerate slightly more efficient, as it uses about 0.10 dollar of water/regeneration, it is not a significant consideration.

Chase the capacity option lists both the effective and the peak levels for making a right decision.

2.0 cubic feet of resin – 64,000 grain peak, 40,000 efficient

1.5 cubic feet of resin – 48,000-grain peak, 32,000 efficient

1.0 cubic foot of resin – 32,000 grain peak, 24,000 efficient

Calculation example

Five people in home, ten grains/ gallon hardness.

  • 350 gpd X 10 grains = 3500 grains per day
  • Five people X 70 gpd = 350 total gpd
  • 2.0 cubic ft. @ 40,000 grains / 3500 = 11 days between regenerations
  • 1.5 cubic ft. @ 32,000 grains / 3500 = 9 days between regenerations
  • 1 cubic ft. @ 24,000 grains / 3500 = 6.8 days between regenerations

 

Watch: How to Size a Water Softener

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