How to Filter Hard Water in Apartment?
How to Filter Hard Water in Apartment?

How to Filter Hard Water in Apartment? 5 Best Filters for Apartments

Water is important for life, yet it is not continuously pure and clean. We can find it by conducting various tests on the water. In truth, many individuals confront the problem of hard water, which can significantly affect their health, home appliances, and plumbing.

Fortunately, you can filter hard water in apartment and enjoy clean and healthy water for drinking, cooking, and cleaning.

In this article, we’ll discuss all you need to know about how to filter hard water in apartment.
We will also propose the five best water filters for apartment. Let’s get started!

Understanding Hard Water

Before we go into a discussion of water filtration, let’s first grasp what hard water is. Hard water has elevated substances like calcium, magnesium, and iron.

Minerals such as calcium and magnesium can build up in your pipes, appliances, and fixtures, producing such problems as decreased water flow, blocked pipes, and destroyed gadgets.

Hard water may cause stains on clothes and dishes, dry your skin and hair, and make soap and detergent less effective.

The source of the water, the location, and the plumbing system are all factors that contribute to hard water.

Some areas have naturally hard water due to the geological composition of the soil, whereas others have hard water due to contamination or treatment methods.

Hard water can also be caused by aging or damaged plumbing systems that allow minerals to accumulate over time.

Types of Hard Water

There are two types of hard water: temporary and permanent.

Temporary hard water is caused by dissolved bicarbonate minerals, such as calcium and magnesium bicarbonate, which can be removed by boiling the water or adding a chemical compound, such as lime or soda ash.

On the other hand, permanent hard water is caused by the presence of dissolved sulfate or chloride minerals, such as calcium sulfate or magnesium chloride, which cannot be removed by boiling.

How to Test for Hard Water?

To determine if you have hard water in your apartment, you can use a testing kit or hire a professional to test your water. Testing kits are easy to use and affordable, and they can give you an accurate reading of the water hardness level in your apartment.

Professional testing is more accurate, but it can be costly and time-consuming.

Negative Effects of Hard Water

Now that we’ve covered what hard water is let’s take a closer look at the adverse effects it can have on your health and household. Hard water can cause the following problems:

Skin irritation: Hard water can dry out your skin and cause irritation, especially if you have sensitive skin.

Dry hair and scalp: Hard water can also leave your hair and scalp feeling dry and itchy, making it harder to manage and style.

Damaged appliances: The minerals in hard water can build up in your devices, such as your washing machine, dishwasher, and water heater, causing damage and reducing their lifespan.

Stains on clothes and dishes: Hard water can leave unsightly stains on them, making them look dirty and worn.

Poor water pressure: The buildup of minerals in your pipes can reduce the water pressure in your apartment, making it harder to shower, wash dishes, or do laundry.

Clogged pipes: The accumulation of minerals in your lines can also cause clogs and blockages, leading to plumbing issues and costly repairs.

Advantages of Filtered Water

Now that you know the adverse effects of hard water, you may wonder what the advantages of filtered water are. Here are some of the benefits of filtered water:

Better taste: Filtered water tastes better and cleaner than hard water, which can taste metallic or bitter.

Health benefits: Filtered water is free of contaminants and pollutants, such as lead, chlorine, and bacteria, which can harm your health and immune system.

Saves Money: By filtering your water, you can reduce the build-up of minerals in your appliances and plumbing system, saving you money on repairs and replacements in the long run.

Better for the environment: By filtering your water, you can reduce your dependence on bottled water, which can harm the environment due to the production and disposal of plastic bottles.

Types of Water Filters

Several types of water filters are available for filtering hard water in your apartment. Here are some of the most common types:

  • Reverse Osmosis (RO) Filters

RO filters use a membrane to remove dissolved solids from water, such as minerals and contaminants. This filter can remove up to 99% of contaminants and minerals, making it one of the most effective methods for filtering hard water.

  • Activated Carbon Filters

Activated carbon filters use a bed of activated carbon to remove impurities, such as chlorine, pesticides, and herbicides, from water. This filter effectively improves taste and odor but may not remove minerals or dissolved solids.

  • Ion Exchange Filters

Ion exchange filters use resin beads to exchange minerals, such as calcium and magnesium, with sodium ions, which can reduce the hardness of the water. This filter type effectively reduces water hardness but may not remove other impurities or contaminants.

  • Magnetic Filters

Magnetic filters use a magnetic field to change the physical properties of minerals, such as calcium and magnesium, which can prevent them from building up in your pipes and appliances. This filter prevents scale buildup but may not remove minerals from water.

Choosing the Right Water Filter for Apartment

When choosing a water filter for an apartment, consider the following factors:

Water hardness level: The water hardness level in the apartment will determine the type of filter you need. If you have very hard water, you may need an RO filter, while an activated carbon or ion exchange filter may suffice if you have moderately hard water.

Budget: Water filters come at different prices, so consider your budget when choosing a filter. Remember, investing in a high-quality filter can save you money on repairs and replacements in the long run.

Space: Consider the space available for the filter and choose a model that fits your needs. Some filters require installation under the sink, while others can be installed on the countertop or refrigerator.

5 Best Water Filters for Apartments

If you live in an apartment and have hard water, installing a water filter can help you enjoy clean and healthy water without relying on bottled water. Here are five of the best filters for apartments that can effectively remove impurities and improve the taste and smell of your water:

1. Brita Water Filter Pitcher for Apartment

The Brita Water Filter Pitcher is convenient and affordable for those who live in an apartment with hard water in their apartment. With a 6-cup capacity, this pitcher fits easily in most fridges and can hold enough water to fill two 24-ounce reusable bottles. Made without BPA, the pitcher reduces 99% of impurities, including lead, chlorine, and microplastics, while an electronic indicator reminds you when it’s time to replace the filter. By using Brita, you can also help reduce single-use plastic water bottle waste.


  • Reusable
  • Alternative to plastic bottle
  • Easy to carry
  • crisp and freshwater


  • Sometimes leaks from the top
Brita Water Filter Pitcher
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2. Aquasana Countertop Drinking Water Filter System

The Aquasana Countertop Drinking Water Filter System is a high-performance filtration system that removes over 97% of chlorine and 76 other contaminants, including lead and pharmaceuticals while retaining healthy minerals like calcium, potassium, and magnesium. With a capacity of 2400 liters and a cost of only 11 cents per gallon, this system is an affordable and convenient option for apartments. No plumber or permanent fixtures are required, and replacements are a simple twist.


  • Easy to install
  • Best instead of plastic bottle
  • Better water taste
  • Affordable


  • It gives the filtered water slowly
Aquasana Countertop
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3. APEC Water Systems RO-90 Ultimate Series

If you’re looking for a more advanced filter for your apartment, the APEC Water Systems RO-90 Ultimate Series is a great choice. This under-sink filter system removes up to 99% of contaminants, including arsenic, fluoride, and bacteria. It also features a long-lasting filter and a compact design that won’t take up too much space.

The filtration system includes a brushed nickel faucet that is completely free of lead and utilizes JG Food grade tubing that has been certified to provide pure water that is safe and free from contamination.


  • Installation is easy
  • Best for a long run and health
  • The great taste of water
  • High-quality filter


  • TDS about 15%
APEC Water Systems RO-90
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4. GE FQK2J Under Sink Water Filter Replacement

If your apartment already has an under-sink filter system. The GE FQK2J Under Sink Dual Flow Drinking Water Replacement Filter is ideal for keeping your water clean and healthy. Water is filtered in parallel flow through very advanced filtration filters. This filter removes chlorine, sediment, and other impurities while improving the taste and odor of your water.


  • Good taste of water
  • Easy to install
  • Easy to replace
  • High-quality filter


  • Little expensive
GE FQK2J Under Sink
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5. Culligan FM-25 Faucet-Mount Advanced Water Filtration System

This faucet-mount filter is an excellent option for apartments because it’s easy to install and doesn’t take up any counter or floor space. The filter reduces chlorine, lead, and other contaminants while improving your water’s taste and smell. It filters for up to 2 months or 200 gallons, depending on usage and water conditions. It’s also compatible with most standard faucets and comes with adapters for easy installation.


  • Easy to install
  • Better tasting water
  • Simple to use, even kids use it easily
  • Best sink filter
Culligan FM-25 Faucet-Mount
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Choose How to Filter Hard Water in Apartment

When choosing a filter for your apartment, consider your budget, the water hardness level, and the type of impurities in your water. Furthermore, follow the manufacturer’s instructions for installation and maintenance to ensure that your filter works and survives for an extended period.

These options will help you find out how to filter hard water in apartment.

How to Install a Water Filter in Apartment

After you’ve decided on a water filter for your apartment, it’s time to put it in place. Installing a water filter in your residence is as simple as this:

Turn off your apartment’s water supply: Locate and turn off the main water valve to prevent water from entering the apartment while you install the filter.

Select the filter’s location: Choose a readily accessible location where the filter may be attached to your plumbing system.

Install the filter as follows: Install the filter according to the manufacturer’s instructions. Attaching hoses, connecting the filter to the plumbing system, and mounting the filter are all possibilities.

Switch on the water supply: Turn on the main water valve after installing the filter to allow water to flow through the filter and into your apartment.

Maintaining Your Water Filter

It is critical to properly maintain your water filter in order for it to function correctly. Here are some cleaning ideas for your water filter:

Replace the filter cartridge regularly: Follow the manufacturer’s recommendations for replacing the filter cartridge, which may need to be replaced every 3 to 6 months, depending on the filter type and water hardness level.

Regularly clean the filter: Some filters may need to be cleaned on a regular basis to remove sediment and other impurities that can accumulate in the filter. To clean the filter, follow the manufacturer’s recommendations.

Check for leaks: Check the filter and connections for any leaks on a regular basis. Tighten the connections or replace the faulty item if you notice any leaks.


In conclusion, several options are available to filter hard water in your apartment, including reverse osmosis, activated carbon, ion exchange, and magnetic filters.

Before choosing how to filter hard water in apartment, it is essential to understand what hard water is, how to test it, and its adverse effects on your health and household. Hard water has elevated substances like calcium, magnesium, and iron and can cause problems such as decreased water flow, blocked pipes, and damaged appliances.

On the other hand, filtered water is free of contaminants and pollutants, tastes better, and saves money on repairs and replacements. When choosing a water filter for your apartment, consider the water hardness level, budget, space, and type of filter that best suit your needs.

FAQs about How to Filter Hard Water in Apartment

Q: What is hard water?

Hard water is water that contains a high level of minerals, such as calcium and magnesium.

Q: What are the signs of hard water?

Signs of hard water include white, chalky buildup on appliances and plumbing fixtures, reduced water pressure, and dry skin and hair.

Q: How do I know if I need a water filter for my apartment?

If you have hard water or notice any signs of impurities in your water, such as odor or taste, you may need a water filter for your apartment.

Q: How often should I replace the filter cartridge in my water filter?

The frequency of filter cartridge replacement depends on the filter type and the water hardness level. Follow the manufacturer’s instructions for replacing the filter cartridge, which may need to be replaced every 3 to 6 months.

Q: Can I install a water filter in my apartment myself?

Yes, you can install a water filter in your apartment, but following the manufacturer’s instructions carefully and turning off the main water valve before beginning the installation is essential. If you need more confidence installing the filter, consider hiring a professional plumber.

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