Hard water in your home can easily induce some nasty limescale buildup. With that, Calgon water softener comes to the rescue. It’s a popular choice of a lot of people because it’s simple to use. You just have to throw some into the washer, and it will protect it from limescale buildup.

Calgon Water Softener

Calgon Liquid Water Softener, Laundry Detergent Booster, 32 Ounce (Pack of 1)
  • Add Calgon Water Softener to your laundry wash for whiter, brighter clothes
  • Maximum lime scale protection
  • Reduce the risk of breakdown and protect your investment

This product is a give from above since it has the capacity to remove minerals found in your water. This prevents buildup that may occur in your appliances and plumbing pipes. You have an option to have a device installed or simply use a low-maintenance Calgon water softener.

How does it work?

Calgon is not only famous for its water softener, but also with health and beauty products. It has been around since the 1930s and it was from the expression “calcium gone” that its name was derived from. 

For a long time now, this water softener has been selling out like hotcakes. Initially, the formulation included phosphates, but they have found a way to eliminate it without compromising the performance. 

The Calgon water softener in liquid form offers a huge deal of convenience. Why? Because you may use the packaging’s container to measure the amount you put in every time. Simply add the softener over the clothes directly or by pouring it in your washer’s drawer compartment. 

For drinking water, the different minerals present may offer some health benefits. However, once these minerals, especially calcium and magnesium, react differently to soap. Once in contact, together, they create the hard deposits called soap scum or limescale. Additionally, high levels of these minerals cause your soap and detergent to not dissolve properly, thus, decreasing your efficiency.

To make matters worse, limescale can also invade your appliances such as dishwashers and washing machines. Overtime, this will make your appliances retire early.

The grossest part is that limescale can also form in your shower or bathtub. And did you know that this is a good breeding environment for bacteria if you house a vinyl shower curtain? YIKES!

Now, to the rescue is Calgon’s water softener that utilizes polycarboxylates and zeolite. Zeolite is actually a volcanic mineral and it is known to eliminate toxins on top of its other health benefits. Scientifically speaking, zeolite contains oxygen molecules bonded with aluminum ions and silicon which have a negative charge. A negatively-charged molecule attracts other molecules, may participate in ion exchange, and break down huge molecules into smaller fragments.

Now since magnesium and calcium are positively-charged, ion exchange takes place between then and the zeolite molecules. This phenomenon stops the reaction of the minerals with soaps or detergents, thus, preventing soap scums. Polycarboxylates function the same way too.

Not sure if you have hard water in your home? Simply pour tap water into a sauce and wait for it to evaporate. Once it leaves a limescale, you’ll know it’s hard water.

What makes Calgon water softener different?

Calgon has been in the water softener market for decades and decades on end. It has survived all these years for a reason. 

It’s easy to dose and effective without breaking the bank. It’s as simple as it gets but it gets the job done efficiently. Ultimately, throwing in some Calgon water softener saves you a hefty amount of money than having a softener device installed. These devices are only great for those with an insane amount of minerals in their tap water. 

Since we are talking about the clothes we wear, it is of great relief to know that this product is fragrance free. This means that it has a lesser chance of reacting negatively with your skin.


  • Prevents limescale buildup in your plumbing system
  • Limescale can hasten the wear and tear of your clothes
  • Prevents soap scum from invading the washer
  • Soft water makes laundry detergent lather better
  • Soap scum may irritate your skin

Price point

You can easily spot a Calgon water softener at your local Walmart. For a little over $5, you can purchase a 32-ounce worth of this product. It is also conveniently available on Amazon. It comes in a pack of $26 and that gives you a little saving. 

What do people have to say?

The star of the show garnered a rating of 4.5 out of 5 on Amazon. Customers rave about seeing improvements immediately. Based on the reviews, a half cap of water softener is enough to cover a single laundry load. 

As per the buyers, clothes feel cleaner and stains and residues are nowhere to be found when using this product. Some even said that it helped make their towels softer and more absorbent while having to use less detergent. 

Take note that the Calgon water softener is marketed as a product for your laundry, but trust us when we say that it’s famous for softening hard water as well. However, be careful when purchasing online. Some disclosed that they have received some leaking bottles. So for me, it’s best to purchase it from your local store.

Other water softeners

Calgon’s water softener is not alone in its department. There are other brands that offer the same water softening system. It is good to test out different products before sticking to one because our homes have different mineral levels. Find the one that suits you!

Charlie’s Soap Laundry Booster and Hard Water Treatment

This is almost the same as the Calgon variant, but it utilizes phosphate which Calgon have already eliminated. It is also affordable and is available in bulks for more savings. 

Don’t worry! Phosphates are safe for the environment as long as you only use one tablespoon of it per laundry session. But if you find yourself needing more than this dosage, you might need to look for alternatives.

Finish Hard Water Booster Powder

Finish’s water softener on the other hand is designed primarily to work its wonders in your dishwasher. Simply add two tablespoons of this powder at the bottom of your dishwasher and wait until it works its magic. 

It contains citric acid that also functions the way Calgon’s ingredients work. However, one thing to take note of is that it contains fragrances. Although these fragrances will provide a great scent and remove unpleasant odors, it is not the best for our environment.

But, if you have high levels of calcium and magnesium in your water, trying this one out may be a great idea!

Lemi Shine – Shine + Dry Natural Dishwasher Rinse Aid Hard Water Stain Remover

The Lemi Shine comes in liquid form unlike our previous option. To use it, just fill your dishwasher with this water softener and it will automatically be added during the rinse cycle. 

The great thing about this system is that it allows your dishwasher to do its job efficiently first before introducing water softener to the mix. The Citric acid found in this water softener may bond with other compounds and make the dish detergent less effective. Thus, this product promotes a more efficient dishwashing experience!

Final thoughts

In our opinion, the Calgon water softener is a great starting point when it comes to the prevention of limescale and soap scums. It is best to try it first before opting for the more expensive devices in the market. 

With this, you can have cleaner clothes, softer towels, and a limescale-free home. With its extremely cheap price tag, it’s pretty hard to say no to this guy.

Now, go and check if you have hard water. If you do, better get up and drive to your nearest local store for some Calgon water softener!

Calgon Liquid Water Softener, Laundry Detergent Booster, 32 Ounce (Pack of 1)
  • Add Calgon Water Softener to your laundry wash for whiter, brighter clothes
  • Maximum lime scale protection
  • Reduce the risk of breakdown and protect your investment


What can I use instead of Calgon water softener?

If you’ve been using a liquid detergent with Calgon in your hard water, consider switching to a powder detergent instead. Powder detergents contain more built in water softening agents than liquid detergents, so it will give you more water softening power.

How do I use Calgon in my washing machine?

You should use Calgon in every wash and at all temperatures to get the best limescale prevention. Just use the recommended use of Calgon in the main wash compartment of the dispensing drawer on top of the laundry detergent. 

Is Calgon water softener the same as borax?

Calgon liquid is mainly sodium citrate, compared that to borax, which is a decent water softener, however, it does have drawbacks. The liquid Calgon, also had surfactants in it and while it could be used as a detergent booster, it could not be used in rinse water, according to the manufacturer.

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