Quick Answer: A water softener by itself does nothing for chlorine smell. You need carbon (or KDF) in front of the resin. For a strong bleach smell in a 2–4 bath home, the DuraWater 5600SXT with a 1.5 cu ft upflow carbon tank gives the most contact time of our picks. If you want one tank and your utility uses plain chlorine, the Kenmore Elite 520 Hybrid, with carbon media built into the softener, is the cleanest setup. If your water report says chloramine, skip KDF and cartridge solutions, choose a two-tank carbon system, and confirm the carbon is catalytic.
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You turn on the shower and the bathroom smells like the community pool. The glass door is crusted white anyway. Two problems, one plumbing line, and it's tempting to think one softener fixes both.
It won't. Softener resin swaps calcium and magnesium for sodium. It isn't designed to catch chlorine, and over time chlorine actually wears the resin down. The fix is a softener paired with something that removes chlorine first. Which "something" depends on a question most product pages never ask.
In this guide
Step one: is it chlorine or chloramine?
Utilities disinfect with either free chlorine or chloramine (chlorine bonded with ammonia). Both can smell. EPA caps both at a 4 mg/L maximum residual disinfectant level in its national drinking water regulations, so even fully compliant water can smell strong. Most people notice chlorine well below that.
Here's how to tell:
- Read your utility's Consumer Confidence Report (usually online, search your city name + "water quality report"). It names the disinfectant.
- Or test it. A DPD test kit that reads both free and total chlorine settles it. If total chlorine is high and free chlorine is near zero, you're on chloramine.
Then follow the branch that fits:
- Free chlorine, mild smell: almost any carbon or KDF stage works. Choose on space and budget.
- Free chlorine, strong smell: go bigger on carbon. A tank, not a cartridge.
- Chloramine: you need catalytic carbon and much more contact time. Water treatment suppliers commonly put it at three to four times what free chlorine needs. KDF and small cartridges are the wrong tools here.
If the smell is rotten eggs, sewage or musty rather than bleach, you're dealing with a different problem. Start with our guide to sulfur smell after a water softener, because carbon sized for chlorine may not fix it. And if you're not sure what you're smelling, why tap water smells like bleach helps you narrow it down.
The picks, by situation
If the smell is strong: DuraWater Fleck 5600SXT + 1.5 cu ft Upflow Carbon + RO
A strong chlorine smell means a lot of chlorine to remove, and carbon removes chlorine on contact. The more carbon the water passes through, the longer it's in contact, and the more chlorine comes out. That's why we put this kit first for strong odor: its upflow carbon tank holds 1.5 cubic feet of media, the largest dedicated carbon bed among our picks.
Quick math: 1.5 cubic feet is about 11 gallons of bed volume. At a busy 5 gpm, water spends over two minutes in the carbon. A 1 cubic foot tank gives roughly a minute and a half. A 20-inch cartridge gives seconds.
The softener side is a metered Fleck 5600SXT, and the kit adds a drinking-water RO system. The listing title doesn't state the grain capacity, so pick the size option that matches your household and hardness.
- Who it's for: free-chlorine homes with an obvious bleach smell, 2–4 bathrooms
- Chloramine? It's the best starting point on this list because of the bed size, but ask DuraWater whether the carbon is catalytic before ordering
- Downside: upflow carbon can't be backwashed. Add a sediment pre-filter if your city water carries grit.
If you want one unit: Kenmore Elite 520 Hybrid
The Elite 520 combines a softener with a built-in carbon media filter that reduces chlorine taste and odor, so there's no separate carbon tank or pre-filter to plumb. Kenmore says the carbon media is self-cleaning, so there are no filter cartridges to replace. The IntelliSoft control learns your household's water use and regenerates only when needed, the 1" valve keeps flow up for a whole house, and it also reduces clear-water iron. It's NSF certified, with a 1-year full warranty, 3 years on electronics and 10 years on the tank. One unit means less floor space and simpler plumbing.
The trade-off is contact time. The carbon shares a cabinet with the resin, so it's a much smaller bed than a dedicated carbon tank, and Kenmore doesn't publish a chlorine reduction percentage or a chloramine claim. It's a good fit for municipal free chlorine, not a chloramine solution. For chloramine, you want a large catalytic carbon tank.
- Who it's for: free-chlorine homes that want a single-unit setup
- Skip it if: your CCR says chloramine, or the smell is strong enough that you want a dedicated carbon bed
If your house runs a lot of water: Fleck 5600SXT 48k + Backwashing Carbon
Big families with lots of laundry and long showers push more chlorine through the carbon every day. A backwashing carbon tank holds up better under that load. Its own control head periodically flushes the bed, which loosens packed media, clears fines and keeps water from channeling past most of the carbon. Upflow tanks can't do that, so they tend to wear out sooner under heavy use.
- Who it's for: 4+ person households on chlorinated city water who want carbon that lasts
- Downside: two powered heads, two drain connections, and some water used at each backwash. Not great if your utility room is cramped.
If your home is on the smaller side: AFWFilters 32k + Upflow Coconut Carbon
For one or two bathrooms, a 48k softener plus a big carbon tank is more equipment than you need. This AFWFilters package pairs a 32,000-grain Fleck 5600SXT softener with a matching upflow carbon tank. Both are 9" x 48", with 10% crosslink resin and coconut shell carbon (about 1 cubic foot each, per the listing).
A couple at 12 gpg uses about 1,800 grains a day, so 32k lets the softener go a week or more between regenerations at a moderate salt setting, and the carbon tank sees modest flow.
- Who it's for: 1–2 bath homes, free chlorine, mild to moderate smell
- Downside: a 1 cubic foot carbon bed is on the small side for chloramine
If space is tight and the smell is mild: GE GXMD30W Smart Softener
The GXMD30W is a 30,000-grain cabinet softener with integrated filtration: a self-cleaning mixed media that reduces chlorine taste and odor, sand and sediment, with no filter changes. It has 1" connections with included quick connectors that adapt to 3/4" or 1-1/4" plumbing, and built-in WiFi that sends low-salt reminders and continuous-flow alerts to your phone through GE's SmartHQ app. Pair it with GE's optional shutoff valve and you can turn off the house water remotely if a leak is detected.
GE doesn't publish how much chlorine the media removes. Assume it's a small bed sharing space with the resin: enough to dull a mild chlorine smell, not enough to fully remove a strong one. Treat it as the fix for "slightly pool-ish," not "eye-watering."
- Who it's for: condos and small homes, mild free chlorine, no room for extra tanks
- Skip it if: you're on chloramine or the smell is strong
Carbon goes first, and your resin will thank you
The order matters for more than the smell. Chlorine slowly oxidizes softener resin, breaking down the crosslinking that holds the beads together. Over years the beads swell and turn mushy, hold less hardness, and can start restricting flow. Our explainer on how chlorine damages softener resin goes into the details. Chloramine brings its own complications, which we cover in how chloramine affects a water softener.
So the carbon or KDF stage should always sit before the softener. The two-tank picks above are plumbed that way, and the two hybrids put their carbon media inside the same cabinet. If you're adding carbon to a softener you already own, plumb it upstream.
How to know it's still working
Carbon doesn't announce when it's done. Signs it's time to rebed or replace:
- The pool smell is creeping back, especially in the shower
- A free/total chlorine test after the softener shows any measurable chlorine
- You notice a chlorine taste at the kitchen tap. Our guide to chlorine taste after a water softener walks through other causes too.
Test twice a year. It takes two minutes and protects both your nose and your resin.
Questions people ask before buying
Would a shower filter be enough? If the smell only bothers you in the shower and you're happy with hard water everywhere else, a shower filter is the cheap fix. But this page is for people with both problems. A shower filter does nothing for scale in your water heater or spots on your dishes, and it leaves chlorine reaching any softener you add later.
Can I just add a carbon tank to the softener I already own? Yes, and it's often the smartest move if your softener is fairly new. Plumb the carbon tank upstream, before the softener's bypass, so both stages are bypassed together. Size the carbon for your peak flow, not your daily use. If your existing resin is older and already mushy from years of chlorine, budget for a resin change too.
Does the carbon stage change how much salt I use? No. Carbon doesn't touch hardness, so your softener's salt use is the same. Protecting the resin from chlorine does help it hold its capacity longer, which keeps efficiency from sliding over the years.
My water smells like chlorine only right after the softener regenerates. Is that this problem? Probably not. Some softeners have a built-in chlorinator that sanitizes the resin during regeneration, and that can leave a short-lived chlorine smell. It's a different issue from municipal chlorine and doesn't call for a carbon tank.
Will an RO system at the kitchen sink handle it? For drinking and cooking water, yes. RO systems include carbon pre-filters. But showers, laundry and the resin itself still see chlorine, which is why whole-house carbon in front of the softener is the real fix here.