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Waterdrop G3 Review [2022]: Best Reverse Osmosis System

Long gone are those days when supplied water in the USA was considered to be safe. According to News 21 channel, more than 63 million American people were exposed to polluted drinking water in the past decade. Water distribution pipe deterioration, industrial waste, and farming pollution are the top 3 reasons for water pollution.

In times like this water filter is a must-have item for every household in America. That’s why the waterdrop company launched Waterdrop G3 (WD-G3-W) water filter. To us, it’s the Best Reverse Osmosis System of our time. It is an NSF-certified reverse osmosis filter that can remove more than 1000 harmful substances from water. The model number of this filter is WD-G3-W. Check out our Waterdrop G3 Review where we pointed out every feature of this machine.

Waterdrop G3 Vs G2

Waterdrop Tankless Reverse Osmosis System, TDS Reduction, 400 GPD Fast Flow, FCC Listed, 1:1 Pure to Drain, USA Tech Support, Brushed Nickel Based Faucet, WD-G2-B, Black
Waterdrop G2P600 Reverse Osmosis System, 600 GPD Tankless RO Water Filter System, Under Sink RO System, 7 Stage Filtration, 2:1 Pure to Drain, Reduce TDS, FCC Listed, USA Tech
Waterdrop G3 Reverse Osmosis System, NSF Certified, Tankless RO Water Filter System, Under Sink RO System, TDS Reduction, 400 GPD, Smart LED Faucet, UL Listed Power, FCC...
Model Number
WaterDrop G2
Waterdrop G2-P600
Waterdrop G3
Water Filtration Process and Stage
5 stages of Reverse Osmosis Process
6 stages of Reverse Osmosis Process
7 stages of Reverse Osmosis Process
Water Flow Rate
400 Gallons per Day & 0.28 gallons per minute
600 Gallons per Day & 0.42 gallons per minute
400 Gallons per Day & 0.28 gallons per minute
Pure Water to Drain Water Ratio
1:1
1:2
1:1
Faucet
Brushed Nickel Faucet
Brushed Nickel Faucet
Smart Faucet
Rating
Waterdrop Tankless Reverse Osmosis System, TDS Reduction, 400 GPD Fast Flow, FCC Listed, 1:1 Pure to Drain, USA Tech Support, Brushed Nickel Based Faucet, WD-G2-B, Black
Model Number
WaterDrop G2
Water Filtration Process and Stage
5 stages of Reverse Osmosis Process
Water Flow Rate
400 Gallons per Day & 0.28 gallons per minute
Pure Water to Drain Water Ratio
1:1
Faucet
Brushed Nickel Faucet
Rating
Get Now
Waterdrop G2P600 Reverse Osmosis System, 600 GPD Tankless RO Water Filter System, Under Sink RO System, 7 Stage Filtration, 2:1 Pure to Drain, Reduce TDS, FCC Listed, USA Tech
Model Number
Waterdrop G2-P600
Water Filtration Process and Stage
6 stages of Reverse Osmosis Process
Water Flow Rate
600 Gallons per Day & 0.42 gallons per minute
Pure Water to Drain Water Ratio
1:2
Faucet
Brushed Nickel Faucet
Rating
Get Now
Waterdrop G3 Reverse Osmosis System, NSF Certified, Tankless RO Water Filter System, Under Sink RO System, TDS Reduction, 400 GPD, Smart LED Faucet, UL Listed Power, FCC...
Model Number
Waterdrop G3
Water Filtration Process and Stage
7 stages of Reverse Osmosis Process
Water Flow Rate
400 Gallons per Day & 0.28 gallons per minute
Pure Water to Drain Water Ratio
1:1
Faucet
Smart Faucet
Rating
Get Now

Our Readers Get an Exclusive 10% Discount on all WaterDrop Water Filters. Click Here to Apply Coupon Code: Open-air-home-10

Waterdrop G3 Review: Features Overview

1) WD-G3-W has an Innovative tankless design with superior filtration & build quality.

2) WD-G3-W uses 3 long-lasting composite filters for 7-stage deep filtration.

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3) Impressive water flow rate: 400 Gallons of pure water per day, 1 cup in only 12 seconds, 0.28 gallons per minute.

4) It provides better quality water by removing 94% of total dissolved solids.

5) Waterdrop G3 comes with a smart faucet and a TDS display screen.

6) It is one of the most efficient RO systems due to the low drain/water waste ratio of 1:1.

7) It has automatic flushing, holiday mode, and sound reminder.

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SpringWell Reverse Osmosis Drinking System: America's No.1 Water Solution For Homes

8) WD-G3-W is an NSF 58 & 372 certified RO water filter.

9) Waterdrop gives you a 1-year manufacturer warranty and a 30-day money-back guarantee.

WD-G3-W: Best Reverse Osmosis System

1) Innovative Compact Design

We really like the tankless design of this Waterdrop G3. Unlike traditional RO systems, waterdrop G3 looks modern and matches well with city apartments. It’s small, lightweight, and easy for anyone to install.

Since it does not have a water storage tank, it weighs only 31 pounds (ca. 14 kg). G3 has a body dimension of 18.06×5.68×17.76 inches. WD-G3-W is a tankless under-sink RO filter. So, you can install it under any kitchen sink. Unlike those bulky tank-style RO water filters, G3 saves valuable space in your kitchen. Moreover, the tankless design of this filter helps you prevent secondary water pollution. Waterdrop G3 comes in beautiful white color and has a display screen on it. The screen shows real-time TDS ratings and filters life Information. It also includes a smart water faucet.

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2) WD-G3-W Water Supply Capacity

When we are talking about the reverse osmosis filter, the term “Capacity” points to 2 questions:

  • How fast it can produce pure water? In other terms, what is the water flow rate?
  • How many gallons of purified water it can provide per day?

A good water filter must have an impressive water flow rate, doesn’t it? Waterdrop G3 needs only 12 seconds to filter 1 cup of water. The impressive water flow rate is achievable for a smart pressure pump. The internal pump increases water pressure for a faster water filtration system. So everyone, even those who have low water pressure in their home, can use it.

With a water flow rate of 0.28 gallons per minute ( 1 cup Ro water in 12 seconds), Wd-G3-W is one of the fastest water filters in the industry.

Moving on to the second question,

Waterdrop G3 can provide up to 400 gallons (ca. 1,514 l) of filtered water every day. If you compare it with a traditional RO filter, you will find that G3 is 8 times more powerful. Traditional RO water filters can supply only 50 gallons (ca. 189 l) of water per day.

Just so you know, an average American family needs 10 gallons (ca. 38 l) of drinking water daily. So, it is needless to say waterdrop G3 is powerful enough to supply adequate drinking and cooking water even to the largest family you can think of.

3) Low Drain Ratio Of WaterDrop G3

Now you might be thing what would be the wastewater ratio of the Waterdrop G3 tankless reverse osmosis water filter. After all, some RO systems are infamous because of their high wastewater ratio. But not Waterdrop G3. Waterdrop G3 has a highly impressive 1:1 drain ratio. Meaning it is a 50% efficient RO water filter. In simpler terms during the water filtration system, half of the water goes to waste while the other half comes out as fresh and pure drinking water.

4) Composite Filters Used In Waterdrop G3 & Their Lifespan

Waterdrop G3, The entire system uses Three filters in total for the RO process.

waterdrop-g3-filters
Waterdrop G3 Filters

For the CF filter, filter life is 60 months or 550 months.

For the RO filter, filter life is 24 months or 2200 gallons (ca. 8,328 l).

For the CB filter, filter life is 12 months or 1000 gallons (ca. 3,785 l)

Obviously filter life depends on the water quality of your area. The more harmful contaminants present in your water the less the lifespan will be.

Changing those filters from time to time may seem like a big headache. Because in our busy life, no one has time to keep track of water-filter usage. Waterdrop Know this. So, they have come up with a smart and easy solution. They have added a smart faucet G3. The smart faucet has indicative lights on it. It works as a filter life indicator and different colored lights are being shown to you according to the filter’s lifespan.

Blue-colored light means the filters are good. The yellow light means you should replace the filters soon and the Red light means you have to replace the filters immediately. The indicator works based on the filtering capacity of the filter or the usage time of the filters (whichever comes first)

We have mentioned earlier that G3 has 3 filters and those 3 filters have different lifespans. Only one indicator light on the RO faucet cannot exactly tell you which filter/filters need to be changed. So, waterdrop has put 3 more indicator buttons on the display. Getting confused?

Take a look at the pictures as we are trying to explain how it works.

Waterdrop smart filter life indicator

Picture 1: Assume, on the smart faucet Blue colored light is on. It means all the filters are working perfectly. No action is required.

Picture 2: Assume, on the smart faucets Yellow-colored light is on. Take a look at the display monitor. You will find at least 1 (can be 2 / all 3) button on the monitor is also showing the yellow warning. In this scenario, the CF filter is marked as Yellow. It means you should replace the CF filter soon.

Picture 3: Assume, red-colored light is being displayed on the RO faucet. Take a look at the display monitor. You will find at least 1 (can be 2/ all 3) button is also showing the Red warning. Here. CF Filter is marked as Red. It means you have to change the CF filter immediately.

5) 7 Stage Filtration by Waterdrop Reverse Osmosis System 

1st step: First your inlet water goes through the CF Filter. CF filter has 3 layers, Pre-sediment Filter + Carbon block + Post-sediment membrane. The membranes are made of polypropylene fiber commonly known as PP cotton. Waterdrop makes the carbon block by using superior Sri Lankan natural coconut shells. The filter preciously removes rusts, sand, chlorine, etc. 3 stages of filtration get completed in this stage.

7-stage-filtration-by-waterdrop-g3-reverse-osmosis-system
7-stage Filtration By Waterdrop G3 Reverse Osmosis System

2nd Step: In the second step, water goes through the RO membrane filter, a multi-stage (3 to be exact) composite filler. The pore size of this RO membrane filter is only 0.0001 micron. So, nothing but water can go through it. It is used to reduce TDS by 94%. It also removes heavy metals like zinc, mercury, and arsenic. Etc. Any kind of particle that is bigger than 0.0001 micron gets filtered out in this stage. Again, 3 stages of filtration get completed in this stage.

3rd Step: In this step water goes through the CB filter, a post-activated carbon block filter.

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After the final filtration system (7 in total) the water quality gets absolutely pure, tasty, and healthy.

6) NSF Certification

Waterdrop G3 is an NSF 58 & 372 (National Sanitation Foundation) certified reverse osmosis water filter. NSF 58 certifies Material Safety structural integrity and contaminant reduction of a filter. NSF 372 certifies the capability of removing lead content by waterdrop G3. The Waterdrop RO system is can reduce the TDS rate by 94%. G3 itself is built with lead-free material and doesn’t have chemical substances like bisphenol A, formaldehyde, etc.

7) Warranty

For your peace of mind, Waterdrop gives you a 1-year manufacturer warranty and a 30-day money-back guarantee with Waterdrop G3. You can return the product within 30 days of your purchase days for a full refund.

Benefits of Waterdrop Reverse Osmosis System

1) Health Benefits

British Actor Andrey Hepburn once said, “Water is life, and clean water means health”. Shall we remind you of the health benefits you will be getting by drinking safe water? Oh man, where do we start?

Adequate consumption of water boosts your skin health, and makes you glow and beautiful. Water increases blood flow in your body and regulates body temperature. It only improves your digestive system but also helps you flush waste from your body. It can also prevent kidney damage.

And when it comes to the availability of clean water, you can rely on the waterdrop G3 reverse osmosis system. Waterdrop G3 is very effective in eliminating the disease-causing organisms, pfas, pfos chemicals, and other 1000+ contaminants from your water.

2) Better Testing Drinking Water

People often complain that the water in their homes smells like rotten eggs. Usually, a high level of sulfur bacteria present in your water causes that bad odor. Waterdrop G3 can help you in situations like this. The CF and CB filters used in G3 remove bacteria and improves the water taste.

3) Water Bill Reduction

With proper maintenance, G3 can supply clean water for at least 7-8 years. During its lifetime, you will never have to buy bottled water. Think of the money you will be saving because of waterdrop G3. 

Moreover, compared to a traditional RO filter. Waterdrop G3 saves wastewater by 300% thanks to its 1:1 drain ratio. Both of these factors help you lower your water bills.

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