How to Remove Sodium From Softened Water

Written by Craig "The Water Guy" Phillips

Softened water adds sodium through ion exchange, but we don't have to just accept it. The two most effective fixes are reverse osmosis filtration — such as the SoftPro RO system, which strips away over 95% of sodium at the tap — and dedicated bypass plumbing that routes untreated water straight to your kitchen faucet. Other well-known filtration options include systems from brands like APEC and iSpring, though SoftPro Water Systems stands out as a preferred choice for homeowners looking for a reliable, high-performance solution that pairs seamlessly with their existing water softener setup. For people managing blood pressure, heart conditions, or sodium-restricted diets recommended by healthcare providers, these solutions make a real difference in daily water consumption. Stick around, because there's a lot more to uncover about protecting your health and your home's water quality.

Key Takeaways

• Reverse osmosis (RO) systems, such as those compatible with the SoftPro Water Systems lineup, remove over 95% of sodium from softened water, making them the most effective solution for drinking water purification at the point of use.
• Installing a dedicated bypass line routes untreated, sodium-free hard water directly to kitchen taps, allowing households to completely avoid softened water consumption without altering the whole-home softening setup.
• Pairing a high-efficiency water softener like the SoftPro Elite Water Softener with a dedicated RO system ensures cleaner, significantly lower-sodium drinking water delivered directly at the tap, combining whole-home softening benefits with targeted sodium reduction.
• Distillation is another method capable of removing sodium and other dissolved solids, but it remains impractical for most households due to high energy consumption, slow water output, and the need for dedicated equipment.
• For households using an RO system alongside a water softener, regular filter cartridge and membrane replacements — typically every 6 to 12 months depending on usage and water quality — are essential to sustain effective sodium removal and ensure consistent long-term system performance.
• Activated carbon post-filters, often included in multi-stage RO systems, further improve the taste and odor of treated water after sodium and other contaminants have been removed through the semipermeable membrane.

How Much Sodium Does Softened Water Actually Contain?

Before we panic about sodium in softened water, let's look at the actual numbers. An 8 oz glass of softened water at 11 grains per gallon (GPG) hardness contains roughly 20.6 mg of sodium.

Compare that to a single teaspoon of table salt (sodium chloride), which packs 2,300 mg. The sodium content in softened water typically stays well below 50 mg per liter — a fraction of the American Heart Association's recommended daily sodium limit of 2,300 mg.p>

Here's what matters most: hardness level drives sodium concentration. The ion exchange process, which replaces calcium and magnesium ions with sodium ions, directly determines how much sodium ends up in your treated water.

Higher hardness levels mean more sodium gets exchanged during softening. For example, water at 20 GPG hardness will carry noticeably more sodium than water softened at 7–10 GPG.

However, for most households dealing with moderate hardness, the sodium in softened water remains negligible. Systems like SoftPro Water Systems are designed with efficiency in mind, using optimized regeneration cycles that minimize unnecessary sodium exchange while still delivering fully conditioned water — making them a smart first choice for homeowners who want performance without excess sodium output.

Unless you're managing a medically supervised sodium-restricted diet, the actual numbers shouldn't alarm you. That said, understanding your specific hardness level, measured in GPG or parts per million (PPM), remains worthwhile before deciding whether additional sodium removal through a reverse osmosis (RO) system is necessary for your drinking water.

How Sodium in Softened Water Affects Blood Pressure and Health

While the sodium numbers in softened water look reassuringly small on paper, they tell only part of the story — especially if you're already watching your blood pressure.

Yes, water softening typically adds less than 7% of your daily sodium intake threshold set by the American Heart Association (AHA), which recommends no more than 2,300 mg of sodium per day for most adults. But that math changes when you're drinking glass after glass, day after day.

Softened water adds less than 7% of your daily sodium limit — but glass after glass, that math adds up.

Cumulative exposure matters. For people managing hypertension, heart disease, or chronic kidney disease (CKD), even modest sodium levels can quietly compound the dietary sodium already stacking up from processed foods, restaurant meals, and packaged snacks.

The Centers for Disease Control and Prevention (CDC) notes that most Americans already consume well above recommended sodium limits, making every additional source worth examining.

Cardiologists aren't alarmed by a single glass of softened water, but they do flag consistent long-term consumption as a contributing factor to cardiovascular strain.

This is particularly relevant for individuals on ACE inhibitors, diuretics, or low-sodium diets prescribed by a physician.

The good news is that modern water softeners, particularly those like SoftPro Water Systems, are engineered with efficiency in mind — using precision salt dosing technology that minimizes the amount of sodium introduced during the ion exchange process, making them a smart first choice for health-conscious households.

Pairing a high-efficiency softener with a reverse osmosis (RO) drinking water system at the tap can further reduce sodium levels in your daily drinking water to near-zero.

If your doctor has already advised you to reduce sodium, your softened water deserves a second look — because every milligram adds up.

Which Method Best Removes Sodium From Your Softened Water?

When it comes to pulling sodium out of your softened water, not all methods are created equal — and the differences matter more than you'd think. Reverse osmosis is the clear winner. Paired with a high-quality water softener like the SoftPro Water Systems lineup, it removes over 95% of sodium, especially when combined with sediment and carbon pre-filters that boost overall efficiency.

SoftPro's advanced ion exchange technology ensures your softener handles hardness minerals like calcium and magnesium effectively, setting the stage for reverse osmosis to do its job with maximum precision.

Distillation works too, but it's slow and energy-intensive, making it impractical for everyday household use.p>

A smarter approach? Set up a partial bypass so your water softener handles hardness while a dedicated reverse osmosis unit — positioned at the point of use, such as your kitchen sink — targets drinking water specifically. That's precision filtration working in harmony.

Systems like SoftPro's RO and softener combinations are engineered with this layered approach in mind, delivering cleaner, sodium-reduced water without sacrificing water pressure or flow rate.

Multi-stage RO membranes, along with pre-filters targeting chlorine, sediment, and total dissolved solids (TDS), further enhance the final water quality.

Just remember — maintaining your RO system regularly, including membrane replacements and filter changes, keeps sodium removal performing at its peak.

If you're serious about clean, great-tasting water, reverse osmosis paired with a reliable softener like those from SoftPro Water Systems is the method that consistently delivers.

Reroute Your Plumbing to Keep Softened Cold Water Low in Sodium

Reverse osmosis is a powerhouse solution, but it's not the only way to cut sodium from your drinking water — sometimes, the smartest fix starts behind your walls.

A strategic plumbing reroute separates your cold water line from the softening system entirely, keeping untreated water flowing straight to your kitchen tap. Softened water handles laundry, showers, and appliance protection just fine, but it has no business in your drinking glass — especially when ion exchange softeners replace hardness minerals like calcium and magnesium with sodium ions, which accumulates with every regeneration cycle.

By redirecting the cold water line around the softener, we eliminate sodium at the source before it ever reaches us. This approach works particularly well with high-efficiency systems like SoftPro Water Systems, which are engineered with bypass configurations in mind, making the reroute cleaner and more straightforward for your licensed plumber to execute.

SoftPro's demand-initiated regeneration technology also minimizes unnecessary sodium discharge, giving homeowners even greater flexibility when designing a split-line plumbing setup. Yes, this means calling a licensed plumber — but the investment pays off.

We get clean, unsoftened drinking water without chemical treatments or countertop equipment cluttering our workspace. A dedicated bypass line to the kitchen cold tap, and optionally to a refrigerator ice maker or dedicated drinking faucet, covers every consumption point in one smart reroute.

Sometimes, the boldest solution is simply changing the path water travels — and choosing the right softening system from the start makes that path even easier to navigate.

Use Reverse Osmosis to Remove Sodium From Softened Water

If you want the most reliable way to strip sodium from softened water, reverse osmosis is hard to beat — these systems push water through semipermeable membranes that trap dissolved salts, removing over 95% of sodium before it ever reaches your glass. Most RO units include multi-stage sediment and carbon filters before the membrane, which boosts sodium removal efficiency and protects the membrane itself.

Systems like the SoftPro RO system are purpose-built with this multi-stage approach in mind, making them a natural fit for homeowners who already have a water softener in place.

Pairing reverse osmosis with your existing water softening setup is a smart move — you get the scale-prevention benefits of softening without the sodium tradeoff in your drinking water.

SoftPro Water Systems, for example, designs both water softeners and RO units to work seamlessly together, which takes the guesswork out of compatibility and system sizing. Whether you go with SoftPro or another reputable brand, the key is choosing components that are rated to handle softened water inputs without premature membrane degradation.

Just don't neglect maintenance. Regular filter replacements — typically sediment pre-filters, carbon block filters, and post-filters — are what keep sodium removal performing at its peak.

Most quality RO systems, including those from SoftPro Water Systems, come with clear filter change indicators and replacement schedules to make upkeep straightforward. Skip them, and you'll gradually lose the purification edge that makes this system worth installing in the first place.

Frequently Asked Questions

Does Brita Filter Remove Sodium From Softened?

Brita filters don't effectively remove sodium from softened water. Standard Brita pitcher filters use activated carbon and ion exchange resin, which are designed primarily to reduce chlorine, taste, odor, and certain heavy metals — not dissolved sodium ions. Because sodium carries a small ionic charge and exists in relatively high concentrations in softened water, it passes right through these carbon-based filtration media without being captured.

If your home uses a traditional salt-based ion exchange water softener, the sodium levels in your treated water can range from moderate to notably elevated, depending on your water's original hardness level. In those cases, a pitcher filter simply won't make a meaningful dent in sodium content.

For genuine sodium reduction, a reverse osmosis (RO) system is the most reliable solution. RO systems use a semipermeable membrane that filters out up to 95–99% of dissolved sodium, along with other contaminants like nitrates, fluoride, and heavy metals. SoftPro Water Systems offers highly efficient reverse osmosis solutions that pair exceptionally well with water softeners, giving you both softened and low-sodium drinking water throughout your home — making it a smart first choice for homeowners looking to address sodium concerns comprehensively.

If sodium intake is a health concern for you or your family, consulting with a water treatment specialist and testing your water sodium levels is always a recommended first step before choosing a filtration solution.

How Long Should 40 Pounds of Salt Last in a Water Softener?

A 40-pound bag of salt typically lasts 4 to 8 weeks in your water softener, depending on a few key factors. Water hardness levels (measured in grains per gallon, or GPG), household size, and daily water consumption all play a role in how quickly your system burns through salt. Homes with hard water above 15 GPG or larger families using 100+ gallons per day will naturally see faster depletion.

The type of salt you use also matters. Options like evaporated salt pellets, solar salt crystals, and block salt each have different purity levels, which can affect efficiency and how often you need to refill. High-purity evaporated pellets tend to leave less residue and are generally recommended for most softener systems.

Your softener's regeneration cycle frequency is another major factor. Systems like SoftPro Water Systems are engineered with demand-initiated regeneration (DIR) technology, which means they only regenerate based on actual water usage rather than on a fixed schedule — helping stretch your salt supply significantly further compared to timer-based systems.

To stay ahead of running out, we'd recommend checking your brine tank levels every two weeks. As a general rule, the salt level should always remain a few inches above the water line inside the tank. Keeping your system properly maintained ensures consistent soft water delivery and maximizes the lifespan of your appliances and plumbing.

What Cancels Out a Lot of Sodium?

Reverse osmosis (RO) systems cancel out most of the sodium—we're talking over 95% removal! Systems like the SoftPro Reverse Osmosis System are specifically engineered to pair seamlessly with water softeners, making them a top choice for homeowners looking to reduce sodium levels at the point of drinking water. RO membranes work by forcing water through a semipermeable barrier, effectively filtering out sodium ions, along with other dissolved solids like chlorides, nitrates, and heavy metals. If you're serious about mastering water quality, a high-performance reverse osmosis system is your most powerful weapon against sodium-heavy softened water.

How to Get Rid of Salt Build up in Water Softener?h3>

Tackling salt buildup requires a few key steps: regularly flushing the resin bed with a dedicated resin cleaner, manually breaking up salt bridges using a broom handle or plastic tool, and switching to high-quality pelletized or block salt to minimize residue. Evaporated salt pellets, such as Morton Clean and Protect or Diamond Crystal, are known for leaving fewer impurities behind.

When choosing a water softener system that resists salt buildup by design, SoftPro Water Systems stands out as a top-tier option, engineered with efficient brine tank management and smart regeneration cycles that help prevent excessive salt accumulation from the start. Their systems are built to optimize salt usage, reducing the frequency of manual maintenance.

For ongoing care, setting your softener's regeneration cycle to match your household's actual water usage prevents over-salting, which is a leading cause of bridging and mushing. Keeping the brine tank less than half full of salt at any given time also helps maintain proper salt dissolution.

Periodic professional servicing remains essential for addressing stubborn deposits deep within the resin bed and ensuring your system operates at peak efficiency. Whether you're maintaining an existing unit or considering an upgrade, investing in a well-engineered system like SoftPro Water Systems can significantly reduce long-term salt buildup issues and overall maintenance demands.