What’s in your household water? Find out with our free water test from your local Culligan water expert.

Culligan whole home water filters protect against a variety of water problems, including bad smells/tastes, iron staining, difficulty cleaning, corroded pipes and more. These powerful, high-quality filtration solutions can be customized to handle your specific water quality concerns.

In this article, we answer the following frequently asked questions about whole home water filters:

Let's dive in!

Whole home filtration solutions improve the water at the point it enters your home. They deliver cleaner, healthier water to every faucet for everyday use. This means you’re able to access filtered water throughout your house when you wash the dishes, make coffee, take a shower, do laundry and brush your teeth.

A Culligan whole home water filter gives you:

Depending on which whole home filtration system you choose, your water will go through several stages of treatment to reduce as many contaminants as possible.*

In general, all whole home filters have a three-stage process.

Problem water can result in many different issues affecting your home. Signs that you may need a whole home water filter include:

However, your water may also contain impurities that you can’t see, taste or smell. Ultimately, testing your water is the only way to know if and what contaminants are present.

Depending on the specific whole home filter you choose, these systems can reduce a wide variety of contaminants, including:

Whole home filtration systems work to filter specific contaminants from the entire home. Conversely, reverse osmosis systems specialize in reducing a broad range of contaminants from drinking water.

A whole home filter is usually installed at the point of entry (such as the main water line). And filters contaminants from your home's entire water supply, including showers, appliances, faucets and more. Meanwhile, a reverse osmosis system works at the point of use (like under your kitchen sink) to provide safer, fresh-tasting drinking water.

The key difference between whole home filtration and reverse osmosis is the presence of the high-quality reverse osmosis membrane. This membrane reduces a wider variety of contaminants when compared to whole home filters, including those smaller in size.

Choosing the right whole home water filter will depend on the contaminants present in your water. Which is typically a result of where you live and where your water is sourced.

Therefore, discovering what’s in your water is the first step to finding the best solution for your home. Culligan water offers several testing options. In addition to the free water test, Culligan provides more advanced testing that can detect issues such as arsenic, lead, E. coli, nitrates, copper, radon, PFOA/PFOS, bacteria, manganese and dozens more.

Once you know the contaminants present in your water, your local Culligan water expert will work with you to find a custom solution. They will consider factors such as water quality, the size of your household and even your home's plumbing before recommending a filter that fits your home and budget.

Culligan water offers a wide range of whole home water filter systems with different types of filters. Some are designed to tackle the foul odors of chlorine, while others work to reduce sediment, iron, sulfur and arsenic in your water.

Below are three of the most popular Culligan whole home water filters.

Just like changing oil in your car, whole home water filtration products require maintenance so you can continue enjoying their full benefits.

Culligan recommends the following preventative measures to keep your whole home filtration system working properly:

The best place to install a whole home water filter is usually near your main water shut-off valve. Most often, this is located in a basement or on the perimeter of the house.

The filtration system should connect with the existing plumbing line in a horizontal run after the main water shut-off valve. But it must be attached before the plumbing line branches out to other parts of the house.

If an appropriate area can’t be located, your local Culligan water expert can “tee off” a small section of vertical pipe to create a horizontal section where your whole home water filter can be installed.

Get better water at every tap in your home.

When you choose Culligan water for your filtration needs, you’re choosing an industry leader with more than 85 years of experience, top-rated water treatment technology, a 100% satisfaction guarantee and a team of local water experts committed to providing the best service available.

For more information about whole home filters or Culligan water products, contact your local Culligan water expert or schedule a free water test today!