Zero Water Filter Reviews (Must Read)

Written by: Jonathan

October 13, 2020

A Review on ZeroWater Filter Pitcher

Water is one of the essentials a humans needs for survival. The solvency of water makes it susceptible to easily dissolve impurities. Even with the importance of water, it is mind-boggling that so many people still do not have access to potable water. An estimated 5 million people die annually from diseases caused by unsafe drinking water, lack of sanitation and inadequate water hygiene.

One of the ways we can make water safe for consumption is through water filtration – Filtration is a method of separation used for separating solid matter from liquid, through a medium with pores that is called a filter. Filtration gets rid of bacteria, chemicals and particles. Portable water has numerous benefits. They include proper skin hydration, detoxification, weight loss and general well being.

The pressing need for easily accessible clean and portable water that is completely safe for consumption is the problem ZeroWater filter pitcher aims to solve with their patented 5-tier filter value proposition. In this post we will be reviewing Zero Water filter: the functionality, the good and the bad as reported by users.

What is ZeroWater Filter?

The ZeroWater Filter is a water filter with NSF certification that purifies regular tap water by getting rid of 99% of total dissolved solids with a 5 stages filter. The result of purifying your water through ZeroWater filter is that you have a cleaner, pure-tasting water (which some may consider bland because of its near-zero TDS).

What are Total Dissolved Solids?

Also known as (TDS), Total Dissolved Solids is the total concentration of inorganic salts, (e.g. calcium, magnesium, potassium, sodium and chloride) and a list of organic compounds that are dissolved in liquids. These dissolved solids can get deposited inside water in different ways. Some are from naturally occurring sources like rocks, while others come through human activities like agricultural and industrial runoff. It is important to mention that TDS is not considered as a primary harmful pollutant but as a pointer of the presence of contaminants in water.                

How does ZeroWater filter work?

Zero Water Pitcher

ZeroWater filter makes use of a patented 5-stage, exchange of ions process to filter out as much as 99.6% of total detectable dissolved solids in water. Each level has a cumulative effect on purity until the old trusty bland taste is achieved.

First stage: Also called the coarse filter, it removes fine particles and sediments from water.  The filtrate then trickles down to the second filter.

Second stage: This is made of a foam distributor whose sole purpose is to maximizes contact time. It disperses the water more evenly across the entire width of the filter to use the filter medium more efficiently. This increases longevity and the ability to remove more contaminants.

Third stage: The filter is a multiple layer system that uses activated charcoal as well as an oxidation-reduction alloy. The carbon filters out contaminants and is constant in most conventional filters. This stage is especially good for organics and for improved taste.

Fourth stage: This is the dual exchange of ion arrays that is very comprehensive. It uses a negative and positive ion exchange resin that strips foreign ions from the water molecules and returns the liquid to a pure state.

Fifth stage: To remove ultra-fine sediments, it uses a non-woven membrane.

The ZP-010, a ZeroWater filtration pitcher retails for around $26, has a capacity of about 2.3 liters (10 cups) and weighs around 1 pound. It is made of plastic and features a one-hand push to dispense button that makes it possible to fill your cup without any lifting. All ZeroWater products come with a free water tester meter to test the purity of your water so you can see the differnce.

Pros of Zero Water Filters

1) High-quality Filters That Reduce TDS Levels To 0

ZeroWater filter gets rid of harmful by-products like herbicides present in your water. It also removes compounds like zinc and chlorine which could be responsible for the metallic taste or the horrible smell that your water has.

2) Filters Out Chromium and Lead

Exposure and consumption of high amounts of lead could cause brain and kidney damage, anemia, weakness, and even death. Lead is dangerous in pregnant women because it can cross the placenta barrier. It can distort the development of the fetus, especially the nervous system, causing children to be born with neurological defects and intellectual disability.

There have also been reports of these particular toxins causing irregular heartbeats, allergic reactions, mood changes, kidney and liver damages. For these reasons, it is important to reduce exposure to lead and chromium to almost 0.

3) Comes With a Free Test Meter

ZeroWater makes it easier for consumers to verify the efficiency of the filters by providing a meter to test the purity of your water.

4) Uses Ion Technology

Ion exchange in water purification is a water treatment method that removes undesirable material from water and replaces them with a non-objectionable or less objectionable ionic substance. It is more effective compared to simple carbon that does not get rid of every contaminant, especially dissolved inorganic substances. This makes ion tech a more efficient option to attain the purest form of water.

5) Easy Installation

There are other filters available capable of filtering tap water. ZeroWater has no setup cost unlike compared to other options such as Reverse Osmosis (RO) that sets you back a few more dollars.                                                                                                                                                                                                                                                                   

Cons of ZeroWater Filter

1) Short Filter Life Expectancy

Many users have reported a shorter lifespan in their filters especially when their water contains high amounts of TDS. For some users, it took between 2-3 weeks before the filter began to change the taste of the water. A few reported an awful metallic taste, funky fish smell or a very high percentage of TDS after a few weeks of use.

2) Slow filtration time

Since the water has to go through the length of five tiers of filtering, waiting for so long to get purified water may become frustrating. Also, after multiple uses, the filter gradually gets blocked which increases the time required for filtration to take place.

 3) Expensive filter

The 5-stage process used in making the filters makes it relatively more expensive than other available options that use only two filters or smaller sizes.

4) Reduction in pH

Once the filter nears the time that it needs to be changed, pH level begins to reduce. Reduction in pH is not dangerous but the extreme reduction in pH levels causes a taste difference in the water.

5) It Gets Rid of Useful Minerals

ZeroWater filters reduce TDS to zero. In the process, it also gets rid of useful minerals present in your water. Naturally occurring minerals that are beneficial to the body are removed to attain zero TDS value.

Why You Should Trust Our Review

We painstakingly researched everything you need to know about ZeroWater. We made inquiries from a number of users to bring you this informed, detailed review.


Compared to other options, ZeroWater filters are more expensive to maintain. However, they have proven to be more effective for removing dissolved sediments & heavy metals like lead. Filtration takes longer because it goes through more steps and filter life expectancy is shorter compared to some other options available. The extra filtration steps also make it a better option to filter water and reduce TDS amounts.

We only sell the best systems!

Our impression is that the ZeroWater system is a trustee pure water provider with its only major shortcomings being its effectiveness, and operating cost.                                                                                                                                                                                   

Are you ready to enjoy the benefits of clean water?