Culligan Blog

Culligan Drinking Water Systems Comparison

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Our drinking water systems give you clean, filtered water right from your faucet, so you'll always have healthy, great-tasting water in your home or business. While water quality can vary dramatically between different areas, we designed our line of drinking water systems to provide a customizable solution for everyone, no matter where you are.

Learn more about our systems below, and check out our comparison to see which one might be best for you.

Culligan Drinking Water Systems

One of our most advanced filtration systems, using five stages of customized filtering to reduce a wide-range of impurities and improve taste. A flexible, under-the-sink design makes it a great solution for home use.

Another under-the-sink solution featuring triple filtration that reduces sediment, limits impurities, and freshens your water. A great standard drinking water system for any home.

Clean water in your office without the heavy water bottles and delivery schedule. Plus, our Bottle-Free® Water Coolers are EPA Energy Star-certified, using about half the energy of similar systems.

Comparing Culligan Drinking Water Systems

Each of our drinking water systems will provide your home or office with clean, great-tasting water. But how do they compare to each other?

  • No More Bottled Water Bulk. All of our systems will have the same outcome - clean, filtered drinking water - that frees up space in your refrigerator. You'll have quick and easy access to water that can improve the taste of your coffee, tea, soups, and other recipes.
  • Reduction of Bottle Waste. Having a Culligan drinking water system in your home or office is an eco-friendly solution that can significantly reduce plastic bottle waste.
  • Flexible Options. Our drinking water systems have connection options that can link directly to your plumbed-in coffee maker or refrigerator for gourmet, café-quality coffee and ice cubes as clean as the water you'll be drinking.
  • Comprehensive Warranties. Our water systems come with a comprehensive, certified warranty that guarantees performance of your new equipment.

What's the Difference?

At this point you might be wondering, "Ok, these sound great, but how do these systems differ?"

  • Under-the-Sink vs. Free-Standing. The most obvious difference is that our Aqua-Cleer® System and AC-30 Good Water Machine® are under-the-sink systems, while our Bottle-Free® Coolers are free-standing water filtration systems that live on your floor or countertop. Each under-the-sink system delivers filtered water straight from the faucet, while our free-standing water coolers provide on-demand, push-button water that's temperature controlled.
  • Additional Contaminant Filtration. Our Bottle-Free Coolers and Aqua-Cleer® System have specialty cartridges that filter out contaminants, including arsenic, perchlorate, and volatile organic compounds. Your local Culligan Man can perform a thorough water test at your home or office to determine if these, or other contaminants, are a problem in your water supply that could be remedied by additional filtration.

If you're interested in a drinking water filtration system, but you're still unsure of exactly which system is best for you, don't worry - our water treatment professionals can help. Contact your local Culligan Man to schedule an appointment today to find your perfect drinking water system.

Be Part of the Solution to the California Drought

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With California entering its fourth year of one of the most severe droughts in history, taking measures to conserve water continues to be among the state’s top priorities. In January 2015, Governor Jerry Brown declared a drought state of emergency, imposing strict conservation measures across the state.

One place you may not have thought to look was at your existing home self-regenerating water softening equipment. Depending on the age and quality of your equipment, you could have an old, inefficient system that could be wasting a significant amount of water.

Regeneration & Water Use

To soften hard water, resin beads within the softener system filter out hardness from the water. A brine solution is used to clean the resin during a regeneration cleaning cycle, which allows the system to continually remove hardness and provide softened water throughout your home. Some water softening systems run for hours, using as much as 100 gallons of water each time it regenerates.

Conserve Water

With a Culligan high-efficiency water softener, you save money and conserve water through smarter technology that’s up to 46% more efficient than other models. The built-in smart meter automatically adjusts to changes in your home’s water conditions and customizes water softness depending on the unique usage and needs of your home.

To find out how a Culligan high-efficiency water softener can help you do your part to conserve water during California’s drought, contact your local Culligan Man and schedule an appointment.


Wanted: Dead or Alive

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Wanted Dead or Alive Image No Border 2015What should you do with your old, noisy, non-efficient water treatment equipment? Give it to us! We want your old water softeners, filtration systems, and any old, clunky water treatment equipment you have - dead or alive - and we'll give you up to $500 as a reward toward a new, eco-friendly Culligan solution.

Conserve. Condition. Culligan.

Conserving water doesn't mean you have to sacrifice the quality of your water. With a new, eco-friendly water treatment solution from Culligan, you can rid your faucets of hard water, while cutting back on water use, brine regeneration, salt, and electricity. Choose from a high-efficiency water softener, high-efficiency conditioning system, or our portable exchange service and start to see the difference in your water right away.

Contact your local Culligan Man during the month of September to schedule an appointment and find out how you can trade in your old, noisy, non-efficient water treatment system and earn a reward of up to a $500 toward a new, eco-friendly Culligan solution.



What is a shower water filter and how does it work?

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Dry, itchy skin? Limp, lifeless hair? Soap scum or residue? If these are some of the side effects coming from your shower, then it's no wonder you're searching for an answer. For a quick fix, you could try a shower water filter as a simple DIY solution, or you could explore a more permanent, long-term, and professionally installed solution.

How do shower water filters work?

Shower water filters come in a variety of sizes and styles that fit directly onto your showerhead. These DIY solutions effectively reduce chlorine, scale, and sulfur odor, and also help prevent dry skin and chlorine damage to color-treated hair.

Once your shower filter is installed, you'll likely notice your skin feeling less dry, your hair feeling cleaner and full of bounce, and there will be significantly less scale buildup around your tub and faucet (this means less cleaning, which is another hidden bonus), as your filter will remove a huge amount of minerals and potentially harmful chemical impurities in your water.

Although adding a shower water filter can produce instant relief from hard water and other problems associated with your water supply, it is a somewhat temporary solution. Most shower water filters have a cartridge that needs to be replaced regularly. Depending on its use, you typically need to replace your filter or its cartridge after every six months of regular use.

Is there a more long-term solution?

Yes, there is! Although a shower water filter is a relatively quick and easy DIY solution to your problem, there are also long-term solutions that may provide a more effective, longer-lasting result in more places throughout your home than your shower alone.

Installing a whole-house water filtration system means cleaner water everywhere, not just in your shower. By reducing particles, contaminants, and imbalances in your water, whole-house filtration addresses hard water problems like soap scum and residue, poor-tasting water, and chemical odors by treating your water directly at the source.

Another way to reduce hard water in your shower and its effects on your entire home is with a water softener. A water softening system is designed to help reduce water contaminants, scale buildup, and increase energy efficiency while extending the life of your appliances - that means spot-free dishware, soft laundry, and more.

If you're interested in a professionally installed, whole-house water filtration or water softening system as a more permanent, set-it-and-forget-it solution, your local Culligan Man can help diagnose and treat your water, and offer a fix that fits the unique needs of your home.

What to Do When Your Water Smells Like Rotten Eggs

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Ever had the experience of turning on the faucet and what comes out is an affront to your senses? Especially your olfactory one? That's usually the biggest tell that you might have some sulfur sneaking its way into your water supply.

It can be a pretty upsetting experience, which is why we wanted to give you all the information we could to help make it a little more bearable, as well as a clear-cut plan for how to get rid of it, and help make sure it doesn't come up again.

Effects of Sulfur Bacteria in Water

The unmistakable odor of rotten eggs really has nothing at all to do with eggs, in this case - rather, the culprit is usually one or more variants of the chemical sulfur. The chemical typically creeps into your water at the source when the supply originates from groundwater resources; it's also common among well-water users. Although sulfur content in water may not lead to serious health effects, its presence is extremely unpleasant to the senses.

Not only will sulfur bacteria lead to offensive odor and taste, it can lead to corrosion of your metal appliances and discoloration of your silverware and copper or brass utensils. You may also notice the negative effects on your laundry - greasy-feeling water and discolored clothing.

What You Can Do About It

Now that you know what's causing the smelly, bad-tasting water, what is there to be done? These foul characteristics can remain even after the water treatment process and remain in the water once it reaches your home. By adding an in-home water filtration system like the Culligan HE Sulfur-Cleer® Whole-House Filter, you'll have better-smelling and better-tasting water throughout your home immediately.

This Culligan filtration system is expertly designed to reduce odor by oxidizing the presence of hydrogen sulfide in your water, while the Sulfur-Cleer® cuts straight to the root of your problem, leaving you with fresher water and fewer odors.

To have your water tested for sulfur content, and to find the best solution to your rotten egg-smelling water, contact your local Culligan Man and schedule an appointment today.

Water Softener Comparison

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Softener Compare ScreenshotReducing the amount of hard water in a home has benefits that are useful to everyone, including a decrease in scale buildup, cleaner dishes, lower utility costs, and more. But with the stark differences in water quality, accessibility, and budgets from house to house, region to region, there isn't a one-size-fits-all solution.


That's why Culligan has a variety of water softeners that can help your family reap the benefits of reduced hard water, no matter what your situation is. If you're a little confused by all the options, though, that's understandable. Here's a quick breakdown showing which Culligan softener may match what you need:



  • For water softening and filtration: HE Municipal Water Conditioner

    A high-performance, dual-function system that gives you softer water that's also filtered to reduce the taste of chlorine.
  • For the highest efficiency and smart technology: HE Water Softener

    A Consumer Digest Best Buy that's 46% more efficient than other softeners, and automatically adjusts to changes in your home's water conditions.
  • For an effective, economical option:  Medallist Series® Home Water Softener

    An affordable design that doesn't sacrifice performance, and seamlessly integrates into your current plumbing with state-of-the-art technology.
  • For a stand-alone solution with no installation: Portable Water Softener Exchange Service

    A great option when you can't or don't need to have a full softener system installed in your home. Fresh, softened water is delivered to your front door when you need it - no installation, no hassle.
  • For water softening and odor/taste reduction:  HE Softener-Cleer Conditioner

    A high-efficiency answer for especially problematic water that not only reduces hardness, but also unpleasant tastes and odors.

Whether you're looking for cleaner laundry, fresher water, or lower electric bills, there's a Culligan water softener for you. Plus, our water systems are third-party certified to perform as promised and are backed by one of the most comprehensive warranties in the industry. So you can have better water with peace of mind - and it's just an appointment away. Contact your local Culligan Man today to find a water softener that's right for your home.

What's Hiding in Your Tap Water

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Water isn't always as simple as it looks. Sometimes there's a lot more lurking in what may look, taste, or even smell like otherwise completely safe drinking water.

In much the same way that many of the processed foods we eat can hide more sugar than we expect, sometimes things get into the water that shouldn't be there. Even some of the chemicals and procedures used to treat water at the municipal level can leave behind some unpleasant byproducts, like bromate, trihalomethanes, and chlorite.

Odorless and Tasteless Contaminants

When we think of odorless and tasteless contaminants, microorganisms are among the more obvious offenders that can go relatively undetected in water and cause pretty major problems. Common microorganisms like cryptosporidium and giardia, and perhaps the less common legionella, can all pass a sniff or taste test, but cause severe stomach upset, and in some cases of legionella's presence, pneumonia.

The most commonly used disinfectant should be relatively familiar to us since chlorine has a variety of uses, both in and outside the world of water treatment. In large, sustained quantities, however, this fairly ubiquitous additive can cause eye and nose irritation as well as chronic stomach upset. Chlorine's chemical neighbor, chlorine dioxide, used to treat and control microbes, has been known to cause anemia in infants as well as certain nervous system effects.

Inorganic Chemicals
Arsenic falls into this category, as well as other offenders like fluoride and asbestos. While none of these are particularly desirable additives to have in drinking water in the first place, arsenic and asbestos can present the potential for immediate health problems and irritations.

Lead, mercury, and nitrates also make the list of hard-to-detect chemicals, since they can generally pass undetected in water - the only way to identify them is a water test.

Know the Risks
In general, regardless of the kind of contaminant(s) that may be present in your water, the most vulnerable populations are the same: young children, the elderly, and anyone with a compromised immune response.

The best thing you can do to protect yourself from odorless and tasteless chemicals in water is have your water tested. Whether you pick up a home water kit from the store, or have your local Culligan Man test it for you for free, you'll have the information you need about your water to make sure it's safe and delicious for you and your family.