7 Tips on How to Choose a Water Softener That’s Right for Your Home

Your hard water solution shouldn’t be so hard

woman filling glass of tap water
Photo: Sevda Ercan/ Adobe Stock
woman filling glass of tap water
Photo: Sevda Ercan/ Adobe Stock
Veronica Sparks
Written by Veronica Sparks
Contributing Writer
Updated July 23, 2024
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If you're wondering how to choose a water softener, you've come to the right place. Hard water can cause a variety of problems in your home, from scaling in your pipes to dry skin and dull laundry. Choosing the right water softener can make a huge difference in the quality of your water and the life span of your appliances. We'll walk you through everything you need to consider to make the best choice for your home.

1. Determine Your Level of Water Hardness

The first step in choosing a water softener is to determine the hardness of your water. Water hardness is measured in grains per gallon (GPG), milligrams per liter (mg/L), or parts per million (ppm). You can use a water hardness test kit, which is available at most home improvement stores, or you can contact a local water softener installation company to test it for you.

Understanding your water hardness level is crucial because it will influence the type and capacity of the water softener you need. Hard water contains high levels of calcium and magnesium, which can cause scaling and reduce the efficiency of your water-using appliances.

2. Consider Your Water Usage

Next, think about how much water your household uses on a daily basis. This is important because water softeners are rated based on the amount of water they can soften per day. According to the U.S. Geological Survey, each person uses 80 to 100 gallons of water every day. So, for a family of four, you would need a water softener that can handle at least 320 gallons per day.

To get a more accurate estimate of your water usage, consider factors such as the number of bathrooms, the presence of water-intensive appliances, like dishwashers and washing machines, and any outdoor water use for lawns and gardens.

3. Consider Your Required Grain Capacity

The grain capacity of a water softener refers to the amount of hardness it can remove before it needs to regenerate. This is expressed in grains per gallon (GPG). To determine the appropriate grain capacity, multiply your daily water usage by the hardness level of your water.

For example, if your household uses 300 gallons of water per day and your water hardness is 10 GPG, you would need a water softener with a capacity of at least 3,000 grains per day. Choose a water softener with a slightly higher capacity than you need to ensure efficient operation and longer intervals between regenerations.

4. Think About Your Available Space

Water softeners come in many sizes, so consider the space you have available for installation. If you have limited space, opt for a more compact model. Measure the area where you plan to install the water softener, including height, width, and depth, and compare these measurements to the dimensions of the units you're considering.

In addition to the physical size of the water softener, consider the accessibility of the installation site. You’ll need access to a drain, a power source, and the main water line. Some water softeners also require a certain amount of clearance around the unit for maintenance and regeneration.

5. Decide Between Salt vs. Salt-Free Softening

Water hardness map across the United States, with ranges measured from slightly hard water to very hard water

Water softeners fall into two categories: salt-based and salt-free systems. Salt-based water softeners use ion exchange to remove minerals from the water, replacing them with sodium or potassium ions. These systems are highly effective at reducing water hardness but require regular maintenance and the addition of salt.

Salt-free water softeners, also known as water conditioners, neutralize minerals instead of removing them, preventing them from forming scale. These systems are low-maintenance and eco-friendly but may not be as effective in areas with extremely hard water.

When deciding between salt and salt-free systems, consider factors such as water hardness, maintenance requirements, environmental impact, and health concerns related to sodium intake.

6. Keep Your Budget in Mind

Water softeners come in a wide range of prices, from a few hundred bucks to several thousand dollars. Then there’s the cost of water softener installation, which averages $1,500. Set a budget before you start shopping and consider both the initial cost and ongoing expenses, like salt, maintenance, and potential repairs.

It’s tempting to choose the lowest-cost option, but remember that a higher-quality water softener can save you money in the long run by reducing maintenance costs and extending the life of your plumbing and appliances. Look for units with good warranties and strong customer reviews to ensure you're making a wise investment.

7. Consider Combining With Other Water Treatments

Depending on your water quality, you might benefit from combining your water softener with other water treatment systems. For example, if you have high levels of chlorine, iron, or sediment in your water, you might need a whole-house water filter or an iron filter in addition to a water softener.

Combining treatments can provide comprehensive water quality improvement and ensure that all potential contaminants are addressed. Talk to a water treatment professional to find the best combination of systems for your needs.

4 Types of Water Softeners

water softener in boiler room
Photo: Michal/ Adobe Stock

There are several types of water softeners available, each with its own advantages and disadvantages:

1. Ion Exchange Water Softeners

These are the most common type of water softener and use a process called ion exchange to remove hardness minerals. They are very effective and can handle a wide range of water hardness levels. However, they require regular maintenance and the addition of salt.

Angi Tip
To keep your water softener in good shape, check the salt levels every four to six weeks, break up solid salt chunks in the brine tank, clean the tank every six to 12 months, only use salt the manufacturer recommends, and flush the resin tank once a year.
Kassidy Barber
Content Editor, Angi

2. Salt-Free Water Softeners

Salt-free water softeners, or water conditioners, use various technologies to prevent scale formation without removing hardness minerals. They are low-maintenance and environmentally friendly but may not be suitable for very hard water.

3. Dual-Tank Water Softeners

Dual-tank water softeners have two resin tanks, allowing one to regenerate while the other is in use. This ensures a continuous supply of softened water and is ideal for large households. These are more expensive and take up more space than single-tank systems.

4. Magnetic and Electronic Water Softeners

These systems use magnetic or electronic fields to alter the properties of minerals, preventing scale formation. They are easy to install and require no maintenance, but experts debate their effectiveness. Magnetic and electronic water softeners may not work well in all situations.

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Learn more about our contributor
Veronica Sparks
Written by Veronica Sparks
Contributing Writer
Veronica has been an avid DIYer, gardener, and hobby home designer for over a decade. Her tips and advice can be found on publications like 21Oak, HappySprout, and The Angle. She also recently launched her own homesteading blog centered on teaching people about sustainable living in suburban areas.
Veronica has been an avid DIYer, gardener, and hobby home designer for over a decade. Her tips and advice can be found on publications like 21Oak, HappySprout, and The Angle. She also recently launched her own homesteading blog centered on teaching people about sustainable living in suburban areas.
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