Find the best alkaline water ionizer for your home today. We rate the top 6 models available right now, and give the low down on the key features that you should be looking for.
Alkaline water ionizers are powerful machines that use some clever technology. Besides making alkaline water on demand, they can also filter your water to remove harmful contaminants like lead.
From our research, we’ve compiled a list of the 6 best water ionizers on the market right now. We’ve put together a handy comparison table where you can compare their key features, and we also review each one in more detail.
If you’re new to these devices then don’t miss our introduction to water ionizers.
Make sure you check out our buyer’s guide too, for the lowdown on the key features that you should be looking for. Use the quick links below to navigate to the part that interests you.
There’s a lot of technical language and science talk used when people talk about alkaline water ionizers. In this section, we break it all down into more manageable pieces. We give the lowdown on these systems, and exactly what they do. What’s ionized water? How do ionizers work? Why get an ionizer? Read on to find out more.
Ionized water is simply water that contains minerals. Minerals such as calcium, magnesium, and sodium are naturally found in water. These minerals enter the water as it passes through soil, or over rock on its way down rivers. These minerals become ions (a positively or negatively charged molecule) when they lose or gain electrons.
Water with no mineral content is called deionized or purified water. This kind of water does not occur naturally, and is made through a process of filtration or purification like reverse osmosis or distillation. This kind of water is neutrally charged and has a pH of 7.
Ionized water comes in two forms, it can be either acidic or alkaline. Each form has its own use, but only one is beneficial for us to drink. A water ionizer produces both of these types of water, and each has its own uses.
Let’s take a quick look at what pH means, before we discuss the 2 types of ionized water more.
Alkaline water is that which has a pH of above 7. A substance that has a pH of 7 is said to be neutral. Anything below 7 is considered an acid.
The pH scale is logarithmic which means that just small numerical changes represent a big change in acidity or alkalinity.
For example, pH 9 is 10 times more alkaline than pH 8.
pH 10 is 100 times (10 x 10) more alkaline than pH 8.
Ionized water is classified according to its pH. Each kind has a very different effect on our bodies. Let’s take a look at what they’re good for:
Ionized Alkaline Water – This is known by scientists as Electrolyzed Reduced Water (ERW). It has been shown to reduce the harmful effects that oxidation can have on the body. In much the same way that we are encouraged to eat antioxidant foods, alkaline water is thought to have the same benefits. We’ll discuss this in more detail further on in the post.
Ionized Acidic Water – This type of ionized water increases oxidation. This makes it particularly useful to us as a cleaner and sanitizer.
A water ionizer makes both of these types of water. The alkaline water is perfect for drinking and cooking, while the acidic water is great for cleaning with.
Water can be made more alkaline in a variety of ways. Some water filters have the ability to add minerals to water, which in turn makes it more alkaline. Most water filter pitchers, countertop filters, and faucet filters add minerals to drinking water. However, their effect on the pH and overall mineral content of the water is often minimal. Furthermore, you have no control over the pH value. This depends completely on the pH of the original water, and how much mineral content is added by the filter.
The most powerful way to make ionized water is using an alkaline water ionizer.
A water ionizer or alkaline ionizer is an electronic unit that increases the pH of water to make it more alkaline.
In doing so, it also makes the Oxidation Reduction Potential (ORP) of the water more negative. Water with lower values of ORP is said to be better for us, as it prevents the harmful process of oxidation from happening in our bodies. The best alkaline water machines give the lowest ORP values.
Oxidation is bad for us, as it can damage things like body tissue, proteins, and DNA.
In the same way that we are encouraged to eat antioxidant foods, antioxidant water is said by many to be healthier for us. It essentially fights the harmful oxidation process. We’ll discuss ORP more in the ‘Buyer’s Guide’ section, a bit further down the page.
Ionizers lower the ORP and make water more alkaline using a process called electrolysis. This technique splits the water into its acidic and alkaline components. The alkalinity of the water can be controlled by the user using a buttons and a digital display.
The chosen water comes out of the kitchen faucet, while the acidic (or oxidized) water comes out of a separate hose. The acidic water doesn’t have to be wasted though. Its chemical properties actually make it an amazing sterilizing agent. This means its perfect for washing up, cleaning, washing hands, and even treating wounds.
The important thing to remember is that research into the benefits of alkaline water is ongoing. The area is still very much being investigated, and while some medical studies suggest it can be beneficial to drink this kind of water, some people are still very skeptical.
Here are some of the reasons why people believe alkaline ionized water is worth drinking. We’ve included links to the scientific studies.
Alkaline water ionizers are complicated machines that have many different features. Some of these features can be difficult to understand at first glance.
We’ve compiled a guide to the things you should be looking for. We’ve also broken down the terminology into more understandable terms.
This is our guide to buying an alkaline water ionizer.
1. pH Range
The main selling points of these systems is the degree to which they change the pH or ORP of the water. We’ll deal with ORP next, but first let’s deal with pH.
As we mentioned a bit earlier, the pH scale describes how alkaline or acidic a substance is. It ranges from 1 (very acidic) to 14 (very alkaline), with 7 being neutral. These machines can produce water with a huge range of pH, with the Tyent UCE-11 giving a range of 1.7 to 12.
You may wonder why you would need such a large range of pH? Well, each band has a special use. Water that is low in pH is really good for cleaning and disinfecting. Mildly alkaline water is the type that is great for us to drink. Water that is more alkaline is great for cooking with. So, though all of these machines produce water that is of the right pH for us to drink, not all of them give the other options.
2. ORP Range
The Oxidation Reduction Potential (ORP) of a substance is a value that represents its ability to oxidize or reduce oxidation in your body. A positive value means a substance is an oxidant, while a negative value means it is an antioxidant. In theory, the lower the ORP value, the better the water is for your body. Let’s discuss this in a bit more detail.
Oxidation is the process that turns apples brown, and makes metal rusty. It does this by “stealing” electrons from them. In the human body, oxidation is a destructive process too. It damages things like cells, proteins, and DNA to name a few. Water (and food) that has a high (positive) ORP causes damaging oxidation where things like DNA and body tissues have electrons taken from them. The substance that takes the electrons is called a free radical.
In exactly the same way that we are encouraged to eat antioxidant “super” foods to guard against oxidation in the body, it is thought that drinking water with a negative ORP value does the same thing. This kind of water reduces the ability of free radicals to attack the body. It does this by giving them electrons, so that they don’t steal them from things like body tissue.
Look for an alkaline water machine that offers a low ORP value. The lower the ORP, the better its ability to reduce harmful oxidation in the body. Though all water ionizers are able to produce water of the optimum pH for drinking, not all of them have the same power to change the ORP. This is where the machines can really differ. Generally, the more expensive ones produce lower ORP (better) values.
3. Number of Plates
The plates are the key components in these systems. They are the parts that come into contact with the water and change it into alkaline, neutral, or acidic water.
Generally speaking, the more plates that a system has, the more powerful it is. This means it is capable of producing water with a larger range of pH, and with a better ORP.
These systems start at 5 plates with the cheaper models, and can have as many as 11 (see the Tyent UCE-11). The models with more plates are also more expensive and consume more power.
4. Built-in Water Filter
These systems also come with built-in water filters. Generally the more expensive the unit, the better this water filter is. The cheaper models use carbon based filters that are great for municipal/city water. If you have a well water supply then you’d be better off with a model that has a more powerful water filter. The Life Ionizers Next Generation M9, Tyent UCE-11, and Bawell Platinum are examples of ionizers that are featured in this guide that have very good built-in water filters.
A point of consideration should be the lifespan and cost of the filter. This will be the main running cost of your water ionizer. The lifespan obviously depends on how much the unit is used, but most systems have filters that last from 6-12 months.
5. Countertop or Under-Counter?
Most of the models we have included in our ionized water system reviews are countertop systems. These are by far the most popular types available. However, some of them are available as under-counter units too, or come with conversion kits to make them this way. The Tyent UCE-11 is the only under-counter unit we have included. These under-counter units have the ionizer machine based under the kitchen sink, with the water fed through a special dispenser on the kitchen sink.
Under-counter units are usually more expensive and take up a bit more space. But, the space they take up is out of sight. This leaves more countertop space in the kitchen.
The installation of these devices is actually really easy. Especially for the countertop units. You shouldn’t need any tools, and it can all be finished in a matter of minutes. Life is a bit harder with the under-counter units as you have to replace the kitchen faucet withy a special dispenser. However, even this isn’t complicated. It just takes a bit longer. The video below show the installation process for a countertop unit. The process is almost identical for the different manufacturers. You can check out a demonstration of the installation for an under-counter unit here.
These devices can be expensive, so make sure you get a lifetime warranty. All the models we have included have lifetime warranties. Be careful to check if this includes labor too though, as some are just for parts. Also, remember to engage the warranty!
These are the 6 best water ionizer machines available right now. Use the comparison table to compare the key features, before looking at our alkaline water machine reviews, where we discuss each model in more detail.
|Model||Rating||Price||pH Range||ORP Range||No. of Plates||Warranty||Filter Lifespan||Key Features|
|Tyent UCE-11||4.9||$$$$$||1.7 - 12||up to -1050||11||Lifetime||6 months||- Powerful Built-in Water Filter|
- Massive ORP potential
- Huge pH Range
- Interactive Touchscreen
- Beautiful Design
|M9 Next Generation||4.8||$$$$$||2.5 - 11||up to -830||9||Lifetime - Parts|
10 years - Labor
60-day Satisfaction Guarantee
|6 - 8 months||- High Water Flow rate|
- Amazing antioxidant potential
- Auto Cleaning
|Air Water Life Deluxe 9.0||4.7||$$$||3 - 11.5||-860 to +1000||9||Lifetime||12 months||- Self Cleaning|
- 7 Healthy Water Modes
- Built-in Carbon Water Filter
|Bawell Platinum||4.6||$$$$||2 - 12||-800 to +600||7||Lifetime||12 months||- 8 Water Settings|
- High ORP Potential
- Powerful Water Filter
|Aqua Ionizer Deluxe 5.0||4.4||$||4.5 - 11||-600 to +600||5||Lifetime||12 months||- Auto Cleaning System|
- Built in Carbon Water Filter
- 7 Healthy Water Options
|Bawell 1195 Premier||4.4||$$$||3.2 - 10||-420 to +600||5||Lifetime||12 months||- Self Cleaning|
- Easy Installation
- Great Value
It makes use of 11 platinum plates and a massive 750 Watts of power to produce a huge pH range and antioxidant potential. The range of pH available is the largest we have encountered. It can produce ultra alkaline water of pH 12 and also acidic cleaning water of pH 1.7, with every value in between. Its oxidation reduction potential (ORP) is also top of the charts. It can produce water of a value of -1050 ORP, which has huge antioxidant benefits.
This water ionizer is undoubtedly very powerful, but it manages to look great too. It’s considered an under-counter unit, which is where it differs from the other models we have reviewed. The ionizer unit is installed under the kitchen sink, and feeds water through the special faucet/dispenser, which replaces your regular kitchen faucet.
The only visible hardware is this special dispenser. On the dispenser is a full touch screen control panel, that takes its inspiration from modern smart phones. Now, this thing looks pretty incredible! It would make any kitchen instantly look like it came from the future. The touch screen is color coded and gives one touch access to a huge range of features and presets. There’s also a jog dial on the top of the faucet that allows you to easily switch through different modes of operation.
If all this wasn’t enough, it also speaks to you! It has audio output that can tell you what mode of operation is currently being used. The user interface is quite amazing, and makes this system a real standout.
The electronics on this system are not just a gimmick though. There are some really handy features that you would expect from a unit with this price tag. These features include:
The last thing we need to discuss is the in-built water filter. As you would expect from something with this price tag, the filter is of a really high quality. It has a rating of 0.01 microns, and is said to remove up to 99% of many harmful contaminants. The micron rating means that nothing bigger than this in size (0.000001 cm) will pass through. This rating of filter is much better than your average specialist water filter system, and is only topped by something like a reverse osmosis unit.
It filters the water using two components. There’s an activated carbon filter that is very effective at removing chlorine, detergents, and VOCs. Then there is the ceramic filter that provides the fine filtration. These filters last around 6 months of use, and are very easy to replace.
Bottom Line: In our opinion, this is the best water ionizer on the market right now. However, it’s certainly not the cheapest.
The system is controlled using a simple seven button interface and an easy to read LCD screen. It isn’t as large as you’d imagine, and its 11.65″ (width), 14″ (height), 5.75″ (depth) dimensions take up little counter space.
The M9 has a huge pH range of 2.5 – 11. This means you have complete control over the alkalinity of your drinking water. You’re able to adjust the alkalinity for different uses or scenarios.
It also has an antioxidant ORP potential of -830 mV. The ORP value is closely related to the pH of the water. As it water gets more alkaline, the ORP value decreases and the more antioxidant “power” the water has. A potential of -830 mV will produce the kind of water that many deem to be healthier.
It achieves this by using 9 platinum coated titanium plates that are charged by an adjustable power supply. The power supply reaches a massive 450 Watts, which makes this one of the most powerful 9-plate ionizers out there.
One of my favorite features about this model is the inclusion of the water filter. Life Ionizers will research the EPA records of your local water supply to identify exactly which contaminants you need to be protected against. That means they can provide customized water filtration, tailored to your needs.
The system comes as standard with an activated carbon filter, and a vitamin C ceramic block filter. The carbon based filter is especially good at removing chlorine and chloramines from water. In fact, it will remove up to 99% of chlorine and its by products.
But, should the water quality research highlight contaminants like lead and arsenic, then there are specialized filters that can deal with this too. These filters can be installed in one of the two internal filter slots, or as part of a pre-filter system. There are a wide range of specialized filters, designed to deal with many common water contaminants. The filters have been independently tested to prove their effectiveness. The specialist filters protect against water contaminants including:
Having such an effective water filter system makes this a water ionizer of some distinction. Water filters themselves can take up a great deal of space too, so having this all contained in one unit is an economical use of space.
Aside from water contamination, this model can also deal with hard water. Hard water is particularly bad for water treatment machines like this, as the limescale it produces binds to the fixtures and makes them ineffective over time. This is one of the reasons many people use water softeners. The M9 uses an Advanced Reverse Action Dual Cleaning system to prevent limescale from affecting its operation. This feature uses electricity to prevent scale from binding to the plates.
Bottom Line: This is a powerful water ionizer/filter combination. The simple controls and effective technology make it a model which earns rave reviews on sites like Amazon.
It uses a 180 Watt SMPS power unit to produce alkaline water at a rate of 2 gallons per minute. This water flow rate isn’t quite as strong as the M9 we reviewed previously, but still offers enough power to cater for most homes.
The unit is controlled using a color touch screen display. The LCD display gives information about the current pH, ORP, filter life, and the electrolysis settings being used.
It uses 3 color coded modes to make things easier to understand. These modes relate to the 4 alkaline levels it offers, the neutral water level, and the 3 acidic water levels. That gives a total of 8 water settings, ranging from strong acidic to ultra strong alkaline. The color coding means you are always immediately aware of the type of water that is being produced (alkaline/neutral/acidic), as well as the strength of the water (how alkaline or acidic it is).
There are also 5 pre-programmed power settings, that give you a total of 35 preset alkaline water and acidic water settings (5 power settings x 7 acid/alkaline settings). This model gives a huge amount of instant options that make it one of the easier systems to use.
The Bawell Platinum also comes with a 0.01 micron built-in water filter. This level of filtration is pretty powerful, and is only trumped by methods like reverse osmosis. There is also a carbon filter that is effective at removing contaminants like chlorine and its byproducts.
This system has some great features, but perhaps best of all is the lifetime warranty. A water ionizer can represent a significant financial outlay, so to come with a warranty like this offers some real peace of mind.
The Deluxe 9.0 packs an impressive 9 platinum plates that make it a really effective alkaline water ionizer. A 9 plate model like this is said to give up to 28% better ORP yields than a 7 plate system. These plates make it capable of changing the pH of water from 3 to 11.5. You might wonder why you would want water with a low pH, but it is great for cleaning and disinfecting. Aside from the pH capabilities, it is also able to make water with antioxidant potential of +1000 to -860 ORP. The lower the ORP value, the more healthy antioxidant properties in the water. A value of -860 means that this model is only topped by the considerably more expensive Tyent UCE-11 in our reviews. But, this model costs much less.
This system offers seven pH water settings. These include 4 alkaline settings (strong to weak), a pH 7 neutral setting, and 2 acid water settings (strong and weak). The ORP levels of these settings can be varied throughout the full +1000 to -860 range. The settings are easily selected and changed using the intuitive user interface.
The Deluxe 9.0 has an automatic cleaning feature. This operates every time the device is turned on and off. The cleaning system has 3 stages and ensures that the system always runs efficiently, and free from hard water scale.
Besides making water more alkaline, this model also has a built-in water filter. The filter is made of activated carbon, which makes it particularly good at removing chlorine from water. The filter is easily replaced and is rated to last for 4000 liters of use, or about 12 months.
Bottom Line: The Deluxe 9.0 offers a huge antioxidant potential of -860 ORP. It’s great value for a 9 plate system. This Air Water Life ionizer reviews really well on sites like Amazon too.
The Deluxe 5.0 uses five platinum coated plates to produce water ranging from pH 4.5 to 11. This produces water of an antioxidant potential ranging from -600 to +600 ORP. The water is available in 7 varieties that are easily chosen using the simple control menu. These options include 4 alkaline choices, neutral pH, and 2 mildly acidic (these are great for cleaning and disinfecting). The ORP value of the water is fully adjustable within the operating range.
The system has a self cleaning feature which prolongs the life of the filter. It cleans itself both at the start and at the end of each use. The filters last for around 4000 liters of use, or about 6 months.
It also has a built-in carbon water filter. Carbon filters are great at removing chlorine and its by-products, but will remove a whole range of other harmful pollutants too. The carbon filter lasts for about one year or 40o0 liters of use.
Bottom Line: Despite costing a fraction of some of the alkaline water machines, this unit still has plenty to offer.
This is a 5 plate system that offers 6 pH water settings. This include 3 alkaline water settings, a pH neutral mode, and 2 acidic water settings. The pH ranges from 3.2 to 10, which gives plenty of options. These pH settings are also available at variable ORP levels. The ORP range of this system ranges from +600 to -420.
It features a large color digital display, that allows you to easily see which mode is being used in real time. It uses color coding which varies depending on the strength of the water type (alkaline or acidic). The display screen also shows the filter life (so that you are always aware of the filter state), the electrolyzing strength, pH, ORP, cleaning mode, and the water temperature.
The display also shows exactly how much life is left on the filter, as well as other functions like electrolyzing strength, cleaning, PH and ORP, and even water temperature. There is even a color changing effect depending on the level of alkaline or acid water you select.
It also includes a water filter. The filter lifespan is the best we have seen for an alkaline water machine, and is around 6000 liters. This should easily last for a year or even longer. The filter is easily replaced with one touch removal and insertion.
The water filter is made from activated carbon. This is very effective at removing chlorine, but it will also target pesticides, arsenic, mercury, lead, pharmaceuticals and more.
Bottom Line: This is a great value system is really easy to use. While it isn’t the best alkaline water machine out there, it will definitely save you a few bucks.
That concludes our top 6 water ionizer reviews of the year so far. We hope we’ve covered all the angles, but please get in contact if you have any questions. We promise to reply promptly. We’ll add to this compilation of alkaline water machine reviews as and when we find new models that are worthy of inclusion.
Check back soon as there’s lots more to come from Water Filter Answers over the coming weeks and months.