# How Much Water Softener Do I Need

There are many sites on the web that give estimates on the size of water softener required. However, hardly any of them factor in the efficiency of the water softeners.

Determine Softening Requirement

First, determine the hardness of your water in grains per gallon (GPG). This information can be gotten from your city’s water supplier if that’s the source of your water. If you get yours form a well however, purchase a test kit and test the hardness yourself. In case this information is given to you in milligrams per liter (mg/L) then divide by 17.1 to convert it to GPG.

In case your water contains iron, add 3 GPG for every 1.0 ppm (mg/L of iron)

Next, determine your family’s water consumption between two consecutive regenerations. You can find your daily average water consumption on your water bills or you could multiply the number of people in your household by 75 gallons to get a near accurate estimate. Then multiply the daily water consumption by the number of days between regenerations. Multiply the result by the hardness and you’ll get your softening requirement.

Example

Assume the following:

300 gallons (daily usage) * 7 days (time between two consecutive regenerations) = 2100 gallons (usage between two consecutive regenerations)

2100 gallons (usage between two consecutive regenerations) * 10 GPG = 21000 GPG (softening requirement).

Factoring in Efficiency

Given 24000 GPG, 32000 GPG, 48000 GPG, 64000 GPG you would perhaps choose the 24000. This, however, will consume a massive amount of salt at each regeneration. The 32000 GPG one will consume 36 pounds of salt to give you 32000 of softening capacity, which is massive consumption! Interesting however, is how it will consume only 6 pounds of salt to yield 20000 softening capacity-efficiency issues.

Although the 32000 one will be a bit expensive, it will be worth it in terms of savings.

Below is a guide on the highest salt efficiencies possible:

Based on this, is a softener sizing chart below:

Determine Softening Requirement

First, determine the hardness of your water in grains per gallon (GPG). This information can be gotten from your city’s water supplier if that’s the source of your water. If you get yours form a well however, purchase a test kit and test the hardness yourself. In case this information is given to you in milligrams per liter (mg/L) then divide by 17.1 to convert it to GPG.

In case your water contains iron, add 3 GPG for every 1.0 ppm (mg/L of iron)

Next, determine your family’s water consumption between two consecutive regenerations. You can find your daily average water consumption on your water bills or you could multiply the number of people in your household by 75 gallons to get a near accurate estimate. Then multiply the daily water consumption by the number of days between regenerations. Multiply the result by the hardness and you’ll get your softening requirement.

Example

Assume the following:

- The number of people in your household is 4
- Your water’s hardness is 10 GPG
- You set the softener to regenerate every week(recommended)

300 gallons (daily usage) * 7 days (time between two consecutive regenerations) = 2100 gallons (usage between two consecutive regenerations)

2100 gallons (usage between two consecutive regenerations) * 10 GPG = 21000 GPG (softening requirement).

Factoring in Efficiency

Given 24000 GPG, 32000 GPG, 48000 GPG, 64000 GPG you would perhaps choose the 24000. This, however, will consume a massive amount of salt at each regeneration. The 32000 GPG one will consume 36 pounds of salt to give you 32000 of softening capacity, which is massive consumption! Interesting however, is how it will consume only 6 pounds of salt to yield 20000 softening capacity-efficiency issues.

Although the 32000 one will be a bit expensive, it will be worth it in terms of savings.

Below is a guide on the highest salt efficiencies possible:

- 0.75 Ft3 (24000 softener) of Softener Resin = 15,000 Grains Capacity
- 1.0 Ft3 (32000 softener) of Softener Resin = 20,000 Grains Capacity
- 1.5 Ft3 (48000 softener) of Softener Resin = 30,000 Grains Capacity
- 2.0 Ft3 (640000 softener) of Softener Resin = 40,000 Grains Capacity
- 3.0 Ft3 (96000 softener) of Softener Resin = 60,000 Grains Capacity
- 4.0 Ft3 (112000 softener) of Softener Resin = 80,000 Grains Capacity

Based on this, is a softener sizing chart below:

Always calculate softening requirement at 75% capacity so as to cater for excessive water use from time to time. Contact 360 water treatment for personalized recommendations on a water softener. Visit http://www.360watertreatment.com/.