7 Best Whole House Water Filters 2019 | Reviews & Guide

Complete Buying Guide

Whole house water filter systems are the ultimate solution to providing high-quality contaminant free water for your home.

This type of filtration system is becoming more and more popular.

A whole house system can be quite expensive to install initially, but it soon starts repaying investment.

Once installed the sheer convenience of a whole house system cannot be matched.

It also means that you can rest safely with the knowledge that the water coming into your house is completely contaminate free.

We have created this ultimate guide to guide you through the benefits and pitfalls of owning a whole house water filter system.

We take you through the pros and cons, and identify the most cost effective systems currently on the market.

Filtration System For The Entire House

Even though you might not know much about filtration systems that serve the whole house, you must have heard a few details from relatives or friends. Moreover, it is possible that there is a filtrations system installed in your home and you probably do not know about it.

With the help of a filtration system that serves the whole house, you can be sure that the water you use around the house is filtered. These amazing filtration systems are also referred to as POE( Point Of Entry) systems. That is because the water first passes through this point before reaching the heater. Both warm and cold water is filtered at this stage before reaching other areas around the house such as the toilet, shower and even washing machine.

Different households used different filtration systems for the whole house. But, you need to acknowledge the fact they are all designed to serve the same purpose which is to purify water. However, some filtrations systems are effective than others. That is why it is important that you consider other factors besides the number of stages that a filtration system has.

Selecting A Filtration System For The Whole House- Things To Consider

Water Flow

There first thing that you need to consider is the water flow. That is because filtration systems that serve the whole house do not produce the same amount of purified water.

After the water is filtered, it is then distributed to other areas around the house this being the toilets, showers, and taps.

For a smaller household, it is okay to rely on a filtration system that produces at least ten gallons of filtered water each minute.

However, if your household consumes plenty of water in a single day, especially during morning hours when preparing for the day and in the evening before bedtime, then you might want to invest in a larger unit. With such a unit, you can be sure that more water will be filtered within a short period which will result in improved water flow.


Different filters are effecting are block different substances. Therefore, it is advisable that your house water is tested before buying any filter.

The test will help reveal the contaminants that are present in the water and with this information, you will be able to decide on which filter would be best for eliminating such contaminants. For example, if your house water contains water-borne bacteria then you will need an ultraviolet disinfection filter.

Which Type Of Water Filter Should I Choose For The Whole House?

The type of filter you choose for your whole house will depend on the test results acquired. Moreover, it also advisable that you take the following factors into consideration as well.

Filter Unit

The first important factor that you should consider is the unit of the filter system. Your filter can have either a small unit or a large one depending on the amount of water you use around the house every day. Therefore, you can either decide to invest in a filter that a capacity of 100,00 gallons or a bigger one if you have a large household of about 1,000,000 gallons.

Make sure that the filter you choose has enough unit to serve each section of the house. Moreover, look for a certified dealer who will offer you the filter unit you want at an affordable price.


You should also consider the amount of water that is used around the house. Even though cheap filters might seem convenient because of the pricing, they might end up costing you more since they will not serve you for longer. That means you will be required to buy another filter within a short period.

Instead of changing your filter almost every month, make sure that the filter you choose to buy can satisfy the entire household. Moreover, if you invest in a filter with longevity and your household uses less water, the filter will state facing other problems such as getting clogged up and eventually will not work efficiently as supposed to.


Filters have different micron rating and the micron rating you choose will depend on the results obtained after the water testing process.

Filters that block substances that are larger than 0.35 microns are considered to be the best.

However, the only disadvantage with these particular filters is that they are a bit expensive than the regular filters that block substances that are close to 1 micron. A micron is equivalent to a thousand of a millimeter.

Why A Filter System For The Whole House Is Important

The reason why most people invest in filter systems for the whole house is to improve the quality of water. The main source of your water supply may distribute clean water to your house, but it can easily get contaminated before it reaches your household.

Chlorine has for long been used a water filter for eliminating harmful substances that are found in water. Many people are used to consuming chlorinated water without being aware of the fact that it is not healthy for your body. According to recent studies, health specialists have concluded that it is dangerous to consume large quantities of chlorinated water.

Chlorinated water can affect your hair and skin in a bad way. The skin becomes dry when you expose it to chlorinated water. As for the hair, it can easily lose its natural complexion and appear to be dull. That is why it is advisable that you use a filter system for the whole house, to eliminate or reduce the level of chlorine that is present in the water.

Moreover, using a filtration system is considered to be environmentally friendly compared to other options of filtration or investing in bottled water.

Another advantage of using a filter system for the whole house is that it helps prevent wastage of water. That is because the amount of water that gets filtered is the same amount that is distributed around the house.

Even though bottled water is safe for consumption, the problem is the packaging. Getting rid of plastic bottles is a major problem since not all plastic bottles can be recycled. Therefore, by using a filter system, you will be protecting the environment for unwanted plastic bottles. Bottled water is also exposed to carbon footprint, especially when being transported from one region to another. That is why it is convenient for most people to install filtration systems in their homes.

Is It Necessary To Buy A Filter System For The Whole House?

Your water supply might guarantee that you are getting clean water. But the only way you can be sure whether it is necessary for you to invest in a filtration system is by having the water tested. You can do this either my closing examining the water with your naked eyes or use a water testing kit.

By testing your water, you will be able to determine the following.

Whether the water is chlorinated or not.

Whether there is the presence of bacteria.

Whether the water has bad flavor or odor.

Whether there are floating substance present in the water.

If you happen to notice any of these facts, then it is necessary that you install a filtration system for the whole house.

How Does A Filtration System For The Whole house Work?

Filtration systems that serve the whole house might have different stages to eliminates contaminates, but the filtration process does not change. Below is a small explanation of how filtration systems work.
The filtration system is connected between the house water heater and the main source of the water line. What happens is that water first passes through the filter before it is directed to the water heater.

The water does not take long to leave the filtration system, but at this point, the water undergoes through different stages to eliminate contaminants and large particles such as sand, debris, and even rust.

Filtration system for the whole house also plays the role of maintaining other filters functionality so that they can serve you for longer. This also helps reduce the cost of changing filters on regular basis.


Once the water exits the filtration stages, it proceeds on to the activated carbon block filter. This is considered to be an important component of the filtration system. That is because it plays the role of elimination contaminates that are harmful to your health.

Activated carbon also offers a huge porous surface which is lined with crannies and nooks to help attract contaminants. This process is known as adsorption. The filer is effective at removing chlorine and volatile organic compounds. It also helps get rid of bad flavor and odor. In other cases, an activated carbon filter can be treated with other special substance for different properties.

Best Filtration Systems For The Whole House

Filtered water usually passes through a mineral and copper-zinc filter, after exiting the activated carbon filter. This particular filter also plays a crucial role when it comes to the filtration process.

Its main purpose is to eliminate any contaminants that may have been left behinds after the filtration process is complete. the filter will get rid of heavy metals and chlorine that is left behind. It also helps eliminate bacteria and microorganisms that are left in the water.

However, you need to be aware of the fact that not all filters have this additional step. Some models complete the filtration process by passing water through a softener, while other manufacturers take advantage of the ion exchange technology for perfection. You can rely on our buyer’s guide to find the top-rated ionizers, that would be best for your home.

When it comes to an ion-exchange water filter, the water first passes the resin beads which are filled with particles of sodium ions. When calcium or magnesium particles come into contact with ion filed beads, they will automatically replace any particles of sodium ions that exist. By doing this, the water becomes softer even though it will have a salty flavor.

Moreover, you can use a post filter to produce clean water with good quality. The post filter is usually filled with small particles since large particles are eliminated on the first stages of filtration. The role of the post filter is to eliminate any small particles that may make it through to the final stage. Post filters may not look the same but work the same way. Furthermore, what matters most is the holes of the post filter. Make sure that the holes are small for effective use.

Another option that is considered to be very efficient is to use a UV filter. This unique filter is very effective when it comes to eliminated waterborne bacteria, microorganisms, and even virus. If you suspect that your water source has bacteria, then you can consider investing in UV filtration system.

Installation & Maintenance Of Filtration Systems For The Whole House

How Does One Install A Filtration System For The Whole House?

Installing a filtration system for the whole house is not a difficult task, but it can turn out to be challenging for someone who is not experienced in this field. Therefore, here are a few tips on how you can do this.

Drain the system and cut off the main source of water supply.

Decide where you want to set up the filtration system and make the spot. Moreover, remember to choose a convenient place where it will be easy for you to reach out.

Use a pipe cutter to cut the pipe.

Follow the manufactures instruction to install the brass fillings as well as the compression nut. Do this with Teflon tape around the fittings.

Install the filter, but make sure that the entry and exit points face the appropriate directions.

Turn off the lifter inlet valve and then turn on the man source water supply. If you do not notice any leakage, then you can turn on the inlet valve.

That is the final stage of installation and every time you are required to change the filter, remember to switch off the inlet valve and use the right equipment for the job such as a wrench.

How To Change A Filter For The Whole House

Changing the filter can be easy or difficult. It all depends on the model of the product although they all use the same principle.

The first thing that you are required to do is switch off the inlet valve of the water filter.

Use a wrench to safely screw off the filter and make sure that you have a bucket nearby for collecting any water that may start dripping.

Use a dry piece of cloth to clean filter inside

Replace the damaged filter and use a wrench to tighten the new one.

Then switch on the inlet valve.

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