Whole-House Water Purifier

A whole-house water purifier provides clean filtered water for your entire home. It eliminates contaminants and minerals that aren’t good for your body.


The system works at the point of entry and funnels all water into a filter and softener combo. It usually starts with a sediment, rust, and dirt filter.

Reduces Chlorine

A whole house water filter removes chlorine and other chemicals from the home’s entire water supply. This is especially important for homes with chlorinated water from municipal sources, which can leave an unpleasant flavor and can be harmful to health. The filter also extends the life of pipes and water-using appliances by reducing the amount of corrosion caused by these contaminants.

In addition to chlorine, many homeowners are concerned about pesticides, industrial chemicals and disinfection byproducts in their water. A whole-house system uses a carbon filter to reduce these organic pollutants in the home’s water. The filters can also eliminate bad tastes and odors and protect the home’s plumbing from clogging, which is typically caused by sediment or hardness minerals.

The filtration process for most systems begins with a sediment pre-filter, which traps particulates and impurities larger than red blood cells. This is usually a mesh-type screen that works like a sponge, constantly filtering the home’s water and catching unwanted materials before they can enter your plumbing.

From there, a copper-zinc (KDF) or activated carbon filter may be added to remove toxins from the home’s water. These are a popular choice because they can reduce chlorine, industrial and agricultural chemicals, VOCs, pesticides and disinfection byproducts, and a wide variety of other contaminates. These types of filters also often reduce acidic water and neutralize low pH levels.

Reduces Iron

Iron is a common problem in well water. When left untreated it can cause orange-red stains on fixtures and laundry and gives water a musty or rotten egg smell. High levels of iron can also damage appliances, clog pipes and cause rust on surfaces. Iron contamination in water can also lead to bacterial growth and a number of health issues.

A Whole House Water Filter can reduce iron in your home. However, it is important to understand that the type of iron removal system you choose depends on your specific needs. You may want to consider a system that is specifically designed for iron removal or a solution that addresses multiple contaminants in the water, like organic matter, manganese and sulfur. You should also determine the level of iron in your water and whether or not you have ferrous or dissolved iron.

The best iron removal systems use chemical or air injection oxidation to treat the water. Air is injected into the water and the oxidized iron is then strained out. This is a low-cost method for removing iron and it’s effective at treating lower levels of iron. Higher levels of iron can require more sophisticated methods of treatment.

You can also reduce iron in your water using a traditional water softener system. Water softeners are primarily used for addressing hard water problems, but they can also be effective at reducing iron. The ion exchange process in water softeners works to reduce soluble iron by swapping it out for sodium ions. This reduces the amount of iron in your water and eliminates the rotten egg smell caused by hydrogen sulfide.

Reduces Sediment

A Whole-house water filter provides your family with peace of mind knowing that every drop of water entering your home is filtered. Unlike point-of-use filters that can only filter the water that comes out of one faucet, these systems ensure all of your home’s water is filtered so it’s safe to drink and use for cooking and cleaning.

A basic whole-house filter system features a sediment pre-filter that catches dirt, sand, and clay from the water before it flows into your house. This is important because these contaminants can damage your pipes and cause your appliances to malfunction. It also keeps your water flowing through the system without clogging.

When the water reaches the second stage, it goes through a carbon filter that reduces chlorine and other chemicals. Some systems even feature KDF media that removes iron, heavy metals, and other organic particles from your water.

A KDF whole-house filter can be especially helpful if you live in an area with hard water because it softens your water, which extends the life of your appliances and prevents scale or corrosion. The water then flows into a post-filter that removes any remaining contaminants. Many of these filters are made from high-quality materials that help them perform well. The clear cover on the filter makes it easy to see when it’s time to flush, which you should do at least once a month.

Reduces Lead

A Whole-house water filter system with lead removal capabilities is a good choice for households concerned about the presence of this harmful compound in their home’s drinking water. Unlike point-of-use filters like the under-sink or water pitcher, these systems filter your entire household’s water supply as it travels to your appliances and fixtures, ensuring that every faucet, shower, and bath receives clean, filtered water.

To remove lead, most whole-house filtration systems use an activated carbon filter that uses an adsorption method to reduce its concentration in the water supply. Some systems also use a KDF media to remove soluble lead, utilizing copper-zinc granules to exchange electrons with dissolved lead particles and make them no longer water soluble. This is a process called redox, and it’s one of the most effective methods for removing lead from water.

Another way to reduce your lead exposure is by using a boiled-water system or by flushing the water in your house. Both of these options require extensive installation and a large investment, but they can help lower the amount of lead in your home’s water supply.

If you’re concerned about lead, it’s best to get your water tested by a professional before choosing a specific water filtration system for your home. A water test kit can tell you the concentration of contaminants in your drinking water, so you can pick a system that meets your needs and budget.