Gravity filters vs. reverse osmosis filters:

Which is right for you?

Access to clean water is essential for staying healthy and avoiding waterborne illnesses. Concerns about tap water quality have increased, so more people are turning to filtration systems to ensure their drinking water is safe. Issues such as unpleasant taste, strange smells, and chemical traces in tap water have encouraged individuals to choose filtered water. Not only does it taste better, but it also provides extra reassurance about water safety. While gravity filters help improve taste and remove minor impurities, reverse osmosis systems deliver a more thorough purification by eliminating a wider range of contaminants. Explore the advantages of each method to find the one that suits your needs.

How gravity filters work  

Gravity filters use a straightforward process to clean water by relying on the natural pull of gravity to remove impurities:

Step 1: adding the water

Unfiltered water is poured into the top section of the gravity filter.

Step 2: gravity-powered filtration

Gravity pulls the water down through a filter element with microscopic pores. These pores block contaminants, allowing only clean water into the lower chamber.

Step 3: multi-layer filtration

The water passes through several layers of filtration media arranged to catch different particles. Larger contaminants are trapped at the top, while smaller particles are removed in the lower layers.

Step 4: filtered water collection

The filtered water collects in the lower chamber and is ready for use.

Gravity filters are simple and effective for basic filtration but might not remove all contaminants.

How AquaTru’s advanced RO filtration works

AquaTru's reverse osmosis systems go beyond the capabilities of gravity filters, offering a deeper clean with patented 4-stage technology. Unlike other reverse osmosis systems that may use varied combinations of filters, AquaTru's setup is optimised to remove contaminants while being easy to use at home.

Stages of AquaTru’s filtration system:

  1. Sediment filter: starts by capturing larger particles such as dirt and silt.
  2. Carbon filter: removes chlorine and other chemicals, improving taste and extending the lifespan of the RO membrane.
  3. Reverse osmosis membrane: removes nearly all contaminants, including heavy metals and pharmaceuticals, for immaculate water.
  4. VOC polishing filter: finishes the process by refining the water's taste providing fresh and clean water every time.

AquaTru's advanced multi-stage filtration removes up to 99% of harmful contaminants, ensuring high-quality water for everyday use. This process has been independently tested and scientifically validated.

  • Key benefits of AquaTru’s RO filters:

    • Highly effective: removes up to 99% of harmful substances, including heavy metals, pesticides, and pharmaceuticals.
    • Improves taste and smell: delivers crisp, fresh-tasting water with its multi-layer filtration system.
    • Long-lasting filters: high-quality components require fewer replacements and minimal maintenance compared to other systems.
    • Perfect for home use: an ideal choice for families looking for a comprehensive system to ensure safe drinking water.

Key considerations: Cost, environmental impact, and ease of use 

Choosing the right water filtration system involves more than just considering filtration efficiency. Factors like cost, environmental impact, and ease of use are equally important. Below is a comparison of gravity filters and reverse osmosis systems such as AquaTru, outlining these key factors to help you make an informed decision.

  • Gravity filters provide basic filtration by reducing chlorine and improving water's taste and smell. However, they are less effective against harmful contaminants. AquaTru's reverse osmosis system removes up to 99% of toxic substances, offering a much more reliable, clean, safe water solution.

  • Gravity filters may have a lower upfront cost but often require frequent filter replacements, leading to higher expenses over time. AquaTru's reverse osmosis systems, though more expensive initially, offer long-term savings due to less frequent maintenance and a potential reduction in reliance on bottled water.

  • Gravity filters are energy-efficient but generate more waste because of their shorter filter lifespan. AquaTru systems, while using electricity, produce less waste in the long run and help reduce plastic waste by decreasing bottled water usage.

  • Gravity filters are simple to set up but need regular maintenance and manual refilling, which may be inconvenient for larger households. AquaTru systems are designed for ease of use, featuring larger storage capacity and less frequent maintenance, making them a more practical choice for everyday household use.

    Gravity filters are affordable for basic filtration, while reverse osmosis systems like AquaTru offer advanced purification, removing a wider range of contaminants. Although RO systems have a higher upfront cost, their long-term benefits—minimal maintenance and exceptional water quality—make them an excellent option for thorough water purification.

    What sets AquaTru apart is its independent certification by IAPMO, which is tested to NSF/ANSI standards 42, 53, 58, and 401. AquaTru removes up to 99% of harmful substances, delivering reliable and safe filtration. Performance data is available for review, ensuring complete transparency.

For more details about AquaTru and its benefits, visit our 'Why AQT' page. Learn how AquaTru can provide your home with superior water quality. Don't forget to check the performance data sheets for the Carafe and Classic to see how effectively AquaTru countertop systems remove contaminants.

Learn more about how AquaTru can enhance your water quality.
Discover the benefits for your home today.