Watch Culligan on Youtube
Find Culligan on Linkedin

Culligan HE Softeners

Find us


With over 800 Culligan dealers in over 90 countries, Culligan is the worldwide leader in water treatment solutions. For more information on Culligan's international products and services, contact the appropriate Culligan office.

Contact Culligan


Culligan Link



More information - FAQ -

What are Culligan’s newest products for soft water?

Culligan’s latest water softener innovation is our Culligan High Efficiency (HE) technology, which maximizes the efficiency of your water softener system. For high-efficiency water softening, nothing can match the intelligent design of the Culligan HE. With patented technologies to optimize salt, water and electricity consumption by up to 46%*, it can save you money. Even better, it can improve your daily life. Enjoy fresher laundry and spotless glasses from soft water. Do less cleaning and scrubbing. Increase water heater efficiency and more. * Up to 46% less versus a time clock regeneration softener.

What is hard water?

Hard water is water that contains dissolved minerals such as calcium, magnesium, iron and manganese. Water naturally becomes hard as it moves over and through the earth to either a reservoir or into an underground aquifer. Hard water is probably the most common water problem found in the home. Hard water can leave spots on your glasses and dishes, make laundry dingy, dull or feeling scratchy, and cause soap scum and scale to build up around showers and faucets, which makes cleaning a chore. Hard water also can build up, causing hard water stains and buildup inside your water appliances, including dishwashers, washing machines, traditional water heaters, and new tankless water heaters. Relative levels of hardness have been established:

Soft Water - less than 1 GPG

Slightly Hard - 1 to 3.5 GPG

Moderately Hard - 3.5 to 7 GPG

Hard - 7 to 10.5 GPG

Very Hard - 10.5 and higher GPG

The most common treatment for hard water in homes is an ion exchange water softener. An ion exchange softener removes dissolved hard minerals from the water, and creates “soft” water.

What is soft water?

Soft water is water that contains few or no dissolved minerals, such as calcium, magnesium, iron and manganese. Water softening involves a process called "ion exchange" to remove the dissolved minerals that can't be trapped by a standard filter. Softeners use fresh resin beads with sodium ions attached to the resin. As water enters the tank, dissolved calcium and magnesium are attracted to the resin. The resin “exchanges” the sodium for the dissolved chemicals and the water is then rid of these impurities.

What are the benefits of a water softener?

A water softener removes the harsh minerals commonly found in hard water, leaving you with softer, mineral-free water that is much easier and gentler on everything that uses water.

With soft water, you’ll see a difference all over the house:

• Cleaner sinks, and faucets with less crusty scale buildup.

• Less soap scum and stains in tubs, showers and shower doors.

• Brighter, cleaner clothes.

• Softer laundry, linens and towels.

• Cleaner, smoother skin and hair.

• New rust and dirty hard water stains are virtually eliminated.

• Reduced hard water buildup in your dishwater, hot water tank, and tankless water heater. This makes cleaning your home easier because you won’t need as many harsh chemical cleaners.

Soft water is also better for your appliances and plumbing:

• Appliances work more efficiently and last longer.

• Pipes are clearer with less corrosive elements and scale buildup.

• Appliances need less detergent and soap, which helps you save money and is better for the environment.

How often do I have to refill the salt?

With regular use with moderately hard water, your water softener will only need to be refilled with salt every two or three months. Of course, if you have very hard water then you may need to refill the salt in the system more frequently. Culligan offers a Salt Service program where your local Culligan Man will provide regular salt deliveries and refill the salt for you.

What is regeneration?

Water softener regeneration is a process that “recharges” the resin beads after they’ve become exhausted by removing the hardness minerals. The regeneration process restores the effectiveness of the resin beads, enabling the water softener to continue to create soft water.