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Types of water filters: Which to choose?

Types of water filters: Which to choose?

By aqua@admin on August 29, 2024

Water almost  never comes in H2O format, this means that it comes with many different minerals, levels of chlorine, bacteria and so on. Each type of contaminant requires a different type of filtration.

Aqua Standard is committed to providing high-quality water filtration solutions to ensure you have access to safe and clean water. 

Domestic water filters can be broadly categorized into two types: point-of-use (PoU) and point-of-entry (PoE) or Magistral filters. Each of these types of filters use different filtration technologies to tackle specific contaminants. 

Understanding the water quality in your home is key to understanding the type of water filter you need. It is recommended to test your tap water at a professional laboratory where you can find all tests for all types of contaminants. Or, if you have a specific concern, you can try DIY menthodes through hardness testers, TDS testers, chlorine, PH, iron, and so on.

In this guide, we’ll explore different types of water filters, how to test your water quality, and help you choose the best filter for your needs.

Understanding the water quality in your home

To ensure you are drinking safe water, it’s essential to test it regularly. If your water has an unusual smell, color, or taste, it’s a clear indication that you need a filter. Even if it appears clean, it doesn’t guarantee that it’s free from contaminants.

You can opt for professional laboratory testing or contact us for our on-site water hardness testing service. 

Request an at-home water test

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Introducing the main types of water filters for home

Choosing the right type of water filter for your home is crucial to ensuring that you and your family have access to safe and clean drinking water. Here’s a detailed look at the main types of water filters available, how they work, what they remove, and their maintenance requirements.

POU (point of use)

RO (Best for removing ~90% of contaminants)

Reverse Osmosis systems filter out the smallest particles and a wide range of contaminants out of the water (Reverse Osmosis: <0.001 microns). Water pressure forces the water through the membrane, leaving impurities behind. 

RO systems typically include several stages of filtration mentioned below. In short, you can call it an all in one package. It’s perfect for daily use; drinking, washing vegetables and fruits, making your cup of tea and so on.

What RO filters remove: 

  • Sediments
  • Chlorine
  • Heavy metals
  • Bacteria
  • Viruses
  • Nitrates
  • Fluoride
  • Dissolved salts
  • Any odd taste or smell

Maintenance: The membrane needs to be replaced every year, while the pre-filters and post-filters need replacing every 6 months.

  • P'URE BALANCE Reverse Osmosis Filter

    P’URE BALANCE Reverse Osmosis Filter

3-stage filter

The 3-stage filter uses sediment and carbon filtration to remove visible dirt and any chlorine, taste, or smell from your water. It is placed under your kitchen sink and has a separate faucet.

The 3rd cartridge in the pack uses EcoMix technology to reduce hardness in the water.

What the 3-stage filter removes:

  • Sediments
  • Chlorine
  • Any odd taste or smell
  • Hardness

Maintenance: The cartridges need to be replaced every 6 months.

  • Domestic 3-Stage Water Filter - Aqua Standard

    Domestic 3-Stage Water Filter

POE (point of entry)

Mechanical (Best for removing large particles aka sediments)

This type of filter isn’t a package deal, you need to pick and choose the filter according to your desired contaminant. Although, the benefit of this is that you can put it on the point of entry and clean out every point where you have access to water. 

It can be your sink, bathroom, AC, heating systems, and so on.

Mechanical filters use physical barriers to block and remove particles from the water. These filters are typically made from materials like pleated polyester, cellulose, or wound filter. 

The size of the filter pores determines the size of particles that can be removed, with micron ratings indicating the effectiveness.

What mechanical filters remove:

  • Large particles such as
    • Sand
    • Dirt
    • Rust
    • Other sediments that can cause cloudiness in the water

Maintenance: You may need to replace your cartridge every 3-6 months or opt for a self-cleaning filter that can last up to 3 years if you wash it every 3 months.

  • Trio with self - cleaning

    Trio with self – cleaning

Carbon (Best for removing smell, taste, color, chlorine)

Carbon filters use activated carbon to absorb and remove impurities from the water. Activated carbon is highly porous, providing a large surface area that traps contaminants as water passes through. These filters can come in granular form or as solid carbon blocks.

What carbon filters remove: 

  • Chlorine
  • Smell
  • Taste
  • Color  
  • Other chemicals that affect the taste and odor of water

Maintenance: Carbon filters need to be replaced regularly to maintain their effectiveness, typically every 3-6 months, depending on the level of contaminants in the water and the filter capacity.

  • Dublex housing 25cm

    Dublex housing 25cm

Softeners (Best for removing water hardness)

Water softeners work by swapping out the minerals in the water that make it “hard,” like calcium and magnesium. Water is considered “hard” when it has a high amount of minerals like calcium and magnesium.

These minerals can cause problems like scale buildup in pipes and appliances, making them less efficient and shortening their lifespan. Hard water also makes it harder for soap to lather, which can lead to using more soap and experiencing residue on dishes, clothes, and skin. 

By using a water softener, you can reduce these issues and make the water in your home easier to use for cleaning and bathing.

The system typically includes a mineral tank, where the ion exchange occurs, and a brine tank, where the salt or resin solution is stored. 

These systems are generally compact, but it’s important to note that they can last up to 10 years under normal conditions.

 However, regular maintenance is required, including refilling the salt every once in a while to keep the system running efficiently.

What water softeners remove: 

  • Minerals that cause hardness – calcium and magnesium

Maintenance: Water softeners need regular care to refill the salt or resin in the brine tank. The mineral tank also needs to be cleaned out from time to time to remove the minerals that build up inside.

  • Softener

    Softener

UV filters (best for eliminating bacteria)

UV (Ultraviolet) filters use ultraviolet light to kill or inactivate harmful microorganisms in the water. The UV light penetrates the cells of bacteria and viruses, damaging their DNA and rendering them unable to reproduce or cause illness.

UV filters remove:

  • Bacteria
  • Viruses
  • Other pathogens that can cause waterborne diseases

Maintenance: UV filters require regular maintenance, including replacing the UV lamp approximately once a year to ensure it continues to effectively kill microorganisms. The quartz sleeve that surrounds the lamp may also need periodic cleaning or replacement to maintain optimal performance.

  • UV filter - Ecosoft - Aqua Standard Water Filters Yerevan

    UV Filter

Conclusion

Water quality is crucial for maintaining good health, and even if you have access to clean water, you need to ensure the health of your family. Installing a water filter in your home acts as insurance against these potential issues. 

Selecting the right water filter for your home involves understanding your specific water quality issues and choosing a filtration system that effectively addresses those concerns. 

Changing your water filtration system can be a hassle. Purchase the best option for your family from the get go. Aqua Standard has the solution to meet your needs and we love speaking about everything water. 

Contact us for a free consultation and water quality testing to ensure you choose the best filter for your home.

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