How do water ionizers differ in pH range?

Different ionizers produce different pH ranges. Some reach super-alkaline (pH 11.5+) or very acidic (pH 2.5-4) levels, which are useful for cleaning but not for drinking. Look for machines that cover the ideal drinking range of about pH 7-10. The extremes of pH (high/low) can only be attained by adding saline, which requires a port and also can harm the water ionizer.

What types of plates do water ionizers use?

Ionizer plates can be solid, mesh, or coated with platinum. Mesh plates provide more surface area for ionization, while advanced electroplating ensures long-lasting performance. The type and quality of plates directly affect the machine’s efficiency and durability. (See #12 in the section above called 'Explaining the Features')

How important is automatic cleaning?

Though all the water ionizers use automatic cleaning, only a rare few use a special feature, called 'automatic continuous-cleaning'. These advanced systems maintain plate efficiency over time, reducing calcium buildup, because the cleaning is continuous. Machines with only intermittent acid-wash cleaning may require manual intervention and can affect long-term performance. (See #12 in the section above called 'Explaining the Features')

What should I look for in filtration quality?

Most water ionizers use high-quality filters, which remove chlorine, heavy metals, fluoride, and microbes. But AlkaViva and Jupiter brands of water ionizers use advanced UltraWater filtration, offering multiple stages for optimal water purity for 249 contaminants up to 99.99%.

Does power supply affect water ionizer performance?

Yes. Switch-mode power supplies are lighter and more energy-efficient, while traditional transformers are robust. Both are reliable, ensuring consistent ionization, especially for machines with multiple plates or advanced features. (See #41 in the section above called 'Explaining the Features')

Are there differences in molecular hydrogen or ORP performance?

Some ionizers produce higher antioxidant levels (more negative ORP) and more molecular hydrogen, which can enhance health benefits. Side-by-side testing is the only way to reliably compare this feature. (See #17-18 in the section above called 'Explaining the Features')

How do installation options vary?

Water ionizers can connect via countertop diverters, under-sink plumbing, or dedicated faucet kits. Consider your kitchen setup, water pressure, and preferred convenience when choosing an installation type.

What are the health benefits of alkaline water?

Alkaline water may improve hydration, reduce acid reflux, and support antioxidant defenses through negative ORP. Many users report enhanced energy and digestion.

Why are alkaline water machines (water ionizers) so expensive?

Electric water ionizers are more expensive because they use pure titanium plates covered with medical-grade platinum (~$1500/oz), include high-quality design, electronics, workmanship, and warranties, and ionize all naturally occurring minerals like calcium, magnesium, and potassium. Non-electric ionizers only ionize magnesium and are less effective. Compared to medical equipment or years of bottled water, they are cost-effective.

Why do water ionizers (alkaline water machines) use platinum-coated electrodes?

Platinum-coated electrodes are essential because platinum is extremely durable and corrosion-resistant. Combined with titanium, electrodes last virtually a lifetime and catalyze the electrolysis process, allowing water to be ionized instantly as it flows through the electrolysis chamber.

Which brand/model of alkaline water machine makes the best water?

Several properly manufactured water ionizers are considered the best if they achieve a wide pH range, produce antioxidants at each alkaline level, and include a good warranty. Other features can be compared in the Water Ionizer Comparison Chart.

Are there any cautions about drinking ionized alkaline water?

Start slowly at the lowest alkaline level, and increase gradually if the water agrees with you. High alkalinity (9.5-10.0) is best for drinking; highest levels can be used for cooking. Use the 'Purified Water' setting for medications. Do not drink acid water from the lower spout.

What is pH and how do I test my body's pH?

pH means 'potential hydrogen' and indicates acidity or alkalinity on a scale of 1-14. 1-6 is acidic, 7 is neutral, 8-14 is alkaline. Saliva should be slightly alkaline (above 7.3) for optimal health. Free urine/saliva pH test kits are available.

Which container, or bottle, is best and what's the best way to store ionized water?

A vacuum stainless steel bottle is the best choice. The second best is a mason jar. Proper storage maintains the water's alkalinity and antioxidant properties.

Does it change the pH or ORP of ionized water to mix it with flavor-aids or alcohol?

Yes. Chemically-created drink mixes like Kool-Aid or Crystal Lite reduce the pH and ORP benefits of ionized water, making it acidic. Alcohol, like scotch, does not reduce pH or ORP.

What are the differences between electric and non-electric water ionizers?

Electric water ionizers are more expensive because they require high-quality pure titanium plates coated with medical-grade platinum. They ionize all beneficial alkaline minerals like calcium, magnesium, and potassium, which are more easily absorbed by cells. Non-electric water ionizers are primarily filters that add magnesium in the presence of magnets. Electric ionizers are superior because they ionize all naturally occurring minerals.

How does a water ionizer work?

A water ionizer uses electrolysis to separate water into alkaline and acidic streams, increasing pH and adding molecular hydrogen for potential health benefits.

What is a naturally ionizing alkaline water filter?

A naturally ionizing alkaline water filter uses mineral-based filtration, such as magnesium and ceramic materials, to raise the pH of water and provide antioxidants. These filters do not require electricity.

Is alkaline water better than filtered water?

Alkaline water offers added benefits like higher pH and antioxidants, while filtered water simply removes contaminants. The best choice depends on your health goals.

Are there any cautions about drinking ionized alkaline water?

You should increase the pH slowly. Start with the lowest alkaline level and increase gradually. Drinking water that’s too alkaline too quickly may cause temporary discomfort. Always introduce new health habits slowly to let your body adjust.

Why do electric water ionizers need platinum coating on the electrodes?

Platinum acts as a catalyst, speeding up the electrolysis process. This ensures immediate and efficient ionization of the water.

Is platinum in water ionizers safe for the body?

Yes. Platinum used in ionizers is safe, and nano-platinum particles may have beneficial effects on the body according to some research.

Which water ionizer do you suggest?

We offer several high-quality water ionizers. You can compare features and prices on our Water Ionizer Comparison page.

What level of alkaline pH is best for drinking?

Most people prefer drinking water with a pH between 9.0 and 9.5. Start with a lower level and increase gradually based on how your body responds.

What are the highest alkaline levels, like 11 pH, used for?

Alkaline levels around 11 pH are typically used for cooking and cleaning, as they help break down grease and grime effectively.

What is the Purified Water setting used for?

Purified Water is neutral pH water that is only filtered, not ionized. It’s ideal for taking medications or for young children and infants.

Can you drink the acid water that comes from the lower spout?

No. Acidic water is not for drinking. It's intended for external use, such as cleaning, disinfecting, or watering plants.

What is the best way to store ionized water?

Store ionized water in an airtight, non-metallic container, ideally in a cool, dark place. This helps preserve its antioxidant and pH properties.

Can babies or toddlers drink alkaline water?

It's best to use the Purified Water (neutral pH) setting for babies and toddlers. Their bodies are naturally alkaline and may not need additional pH boost.

Why Drink Alkaline Ionized Antioxidant Water?

Alkaline ionized water offers more than just hydration — it supports your body’s natural ability to detox, energize, and stay balanced.

Is alkaline water safe to drink every day?

Yes, it’s safe for most people when consumed in moderation. Start with lower pH water and gradually increase. Avoid very high pH (>10) during meals.

Can children drink alkaline water?

Children can drink mildly alkaline water (pH 8–9). For children with specific health conditions, consult your pediatrician first.

How Ionized Water Acts as an Antioxidant

Ionized water provides millions of electrons that neutralize harmful free radicals. Unlike traditional antioxidants, hydrogen evaporates after donating electrons, leaving no negative byproducts.

PH & ORP — What Do They Mean?

PH stands for 'potential hydrogen' and indicates acidity or alkalinity. ORP measures antioxidant potential. Negative ORP, found in ionized water, means stronger ability to combat oxidation.

Is bottled alkaline water the same as ionized water?

No. Bottled water loses molecular hydrogen quickly and does not maintain negative ORP. Electric ionizers provide fresh, high-antioxidant water on demand.

Can alkaline water help with acid reflux or digestion?

Many people report relief from acid reflux and improved digestion with regular alkaline water. Some studies suggest pH-balanced water can neutralize stomach acidity.

Are there any cautions when drinking alkaline water?

Start slowly with the lowest setting. Gradually increase pH and intake.

Does alkaline water help with weight loss?

Alkaline water may support metabolism and fat-burning indirectly by reducing acidity and improving hydration, but it is not a replacement for a healthy diet and exercise.

Do I need to drink a lot to see benefits?

Start with 4–8 cups per day. Consistent use over weeks to months yields the best results.

Can I use alkaline water for pets or cooking?

Mild alkaline water is safe for pets. Using it for cooking can enhance mineral content and flavor, but extremely high pH water is not recommended for daily cooking.

Cost of a Water Ionizer?

Investing in a water ionizer is a smart long-term health choice. Daily cost for a family is roughly $0.50. High-quality ionizers use platinum-coated plates and advanced electronics for durability.

How to Get Alkaline Ionized Water

1. Use a Water Ionizer Machine: Most effective way to get fresh, antioxidant-rich alkaline water at home with customizable pH levels, powerful filtration, and rich molecular hydrogen. 2. Try Natural Ionizing Water Filters & Pitchers: Portable and affordable options with easy use, lightweight travel-friendly design, though less hydrogen compared to electric ionizers.

What are the most common contaminants found in tap water?

Tap water can contain chlorine, fluoride, heavy metals like lead or mercury, and volatile organic compounds (VOCs). These can be removed using carbon, KDF, and UltraWater filters.

Do water ionizers filter water?

Yes. Water ionizers include internal filters, but for complete protection from fluoride and heavy metals, pairing with external filters like the Fluoride Shield or UltraWater filter is recommended.

What is the best filter for fluoride removal?

Specialized fluoride filters, such as the Fluoride Shield, use advanced media to attract and remove fluoride ions from drinking water.

How can I know which filter I need for my home water?

Check your local water quality report and match filters to your specific contaminants. Carbon filters remove chlorine and VOCs; KDF filters remove heavy metals; ceramic filters remove microorganisms.

Do I need both a pre-filter and an ionizer filter?

It's optional. A pre-filter protects your ionizer and improves water purity, ensuring longer filter life and cleaner, better-tasting water.

Nexus X-Blue Water Ionizer

Description
Reviews

The X-Blue Water Ionizer gets better results than any other water ionizer in its class.

Nexus X-Blue Water Ionizer front view and side view

Overview

The Nexus X-Blue Water Ionizer is the best value water ionizer on the market, offering exceptional quality, durability, and performance in its price range. Enjoy clean, alkaline water at home with this easy-to-use, five-plate ionizer.

Key Features

Easy installation: wall-mounted or countertop setup, hooks to your sink
Simple one-touch button controls
4 alkaline levels & 4 acidic levels for personalized use
Pure water setting for filtered-only water
High-quality filter materials that remove contaminants while retaining minerals
5 large platinum-titanium coated electrode plates for maximum ORP & alkalinity
Compact design
Free pH test kit included
Internal mini-computer with self-diagnostic system and voice alerts
Filter life: ~1,000 gallons; replacement cost $79.95
Sleep mode & automatic shutoff for energy efficiency
Safety features: low water pressure alarm, overheating prevention
A voice indicator alerts you with adjustable volume.
Self-diagnostic system ensures peak performance
Goes into sleep-mode between uses, but automatically turns on when you start the water flow.

The Nexus X-Blue Water Ionizer - Outstanding!

The Nexus X-Blue Water Ionizer is not only the best bargain water ionizer we have, but it is also a truly outstanding water ionizer! The quality of the X-Blue water ionizer is unmatched by any other water in its price range.

Made in Korea.
Certified and used in hospitals in both Korea and Japan.
Nexus brand water ionizers are made in the highest quality manufacturing plant in Korea.
CE, NRTL, ISO9001, ISO14001, KFDA, KGMP and RoHS certificates

It all starts with quality design and manufacturing

Ionia water ionizer manufacturing quality and platinum-coated electrode plates

The Nexus X-Blue water ionizer is made by Ionia, the oldest and largest water ionizer manufacturer in Korea. The X-Blue is a fantastic, five-large-plate, top-of-the-line ionizer. There is no better water ionizer (not even close) than the Nexus X-Blue water ionizer in this price range.

Nexus has a patented method of spraying their water ionizer plates to ensure the plate is thoroughly coated with platinum and that no dust or air-bubble gets trapped into the coating. This coating process is tested and proven to increase the surface area of platinum for the maximum ORP. See this plate comparison.

All water ionizers are tested before leaving the warehouse and factory for quality control purposes. New filters are installed, but there is usually a small amount of residual water, so plugs are placed on all ports for shipping. Please follow these guidelines for removing the quick-connect plugs.

The X-Blue Tests Great in Hundreds of Comparison Tests!

The Nexus X-Blue water ionizer has been fully tested by us, and we have found that the performance, quality, sturdiness, dependability, and certifications are all great! You can feel sure that you are able to get high ORP, a great pH range, and excellent filtration with the Nexus X-Blue water ionizer!

Watch These Short Videos to See the Fantastic Testing Results (and Comparisons with Other Much More Expensive Water Ionizers) of the Nexus X-Blue Water Ionizer

Customer Reviews

For more reviews, click the Reviews tab, above.

"I absolutely love my X-Blue water ionizer machine. I have had it for a little over 1 year now and I haven't had any problems or issues. It's a great ionizer!" – Shaina H.

"Love my X-Blue! Best purchase I've made this year!" – Jen S.

"The X-Blue is a great product, affordable and effective." – Matthew M.

Nexus Filters & Maintenance

Comes with a high-quality filter installed.
Filters last for approximately 1,000 gallons of water poured through the machine. Replacement filters cost $79.95.
Filter Indicator: A symbolic filter indicator icon tells you about the remaining water filter life. Optimum performance is ensured by always changing your filter on time. In addition to the symbolic indicator, a new indicator light will flicker when your current filter life is up, reminding you to change your filter.
The spring-loaded filter housing makes it a snap to replace your filter.
Also comes with a free cleaning filter. Hold onto this in case your water flow slows down a little.
Replacement Filters: You can also opt for .01M bacteria-removing filters.
Additional Benefit: Removes Fluoride up to 85%.

Cleaning Filter

The X-Blue Water Ionizer comes with a free cleaning filter, only needed if water flow slows down.

Specifications

Input Voltage: AC110V
Power: 0.5A (110W)
Weight: 12 lbs (5.5 kg)
Dimensions: 11 x 6 x 14.5 inches (272 x 160 x 376 mm)
Water Pressure: 0.7 ~ 5 Kgf/cm²
Water Temperature: 40 ~ 90°F (5 ~ 30°C)
Easy replaceable filter with one-touch reset
Hot water shut-off & auto electrolysis levels
Max output rate: 2-3 quarts/liters per minute

Use & Care

If you install with direct connection to a tap or to mains [tee not included] make sure to have an external shut-off, because Nexus water ionizers are not rated to remain under constant pressure.

Please note: With 5-plate water ionizers, such as the Nexus X-Blue water ionizer, it is suggested to flow the water slowly, at about the rate of 1.5 quarts/min. When you do this you will get both outstanding ionization [shown in both the pH and ORP] and far better filtration.

Warranty & Support

The X-Blue Water Ionizer comes with a lifetime warranty when purchased through Alkaline Water Plus. A full statement of this coverage can be found at the bottom of this page: Nexus Water Ionizers. You are automatically registered when you purchase your Nexus water ionizer through Alkaline Water Plus.

Fuse Information:

3 amps
125V
Fast blow/fast acting fuse
5mm (3/16") x 20mm (3/4")

Purchase Options

Nexus X-Blue machines qualify for a payplan.

Certification & Manuals

Related Resources

We have many pages in this website designed to help you make the right choices for your water ionizer and that includes proper filtration as well. If you have well-water, very hard water, very soft water, a whole-house water softener, or another specific water-source issue, please read the appropriate page(s) listed below for your convenience before you order. Or contact us for a free water quality consultation.

Note: All pH and ORP levels are approximate, depending on local water supply, because water ionizers don't always work the same in every location.

Note: A water ionizer is a life-long investment in your health. As such, all of our water ionizers are covered with lifetime warranties. If you ever need a repair, you will need all of your original packing and plugs and other cautions for safe shipping. Visit our Safe Shipping & Receiving of a Water Ionizer page.

Packing Up the Smart, Nexus or Jupiter Water Ionizer

Turn off the water source.
Open the flow knob (releases pressure on lines).
Blow through spout to force water out of machine.
Remove spout and hoses; let dry.
Put plugs in/on the open ports (from the spout and two hoses) and secure the electric cord with a twist-tie.
Make sure machine is dry before covering it with the large plastic bag that came with it.
Turn the machine on its side.
Fit the bottom into the foam fitting and plug into the corner hole.
Slide machine into product box.
Turn box upright.
Put hoses and other pieces into a separate plastic bag and insert them into the box.
Make sure to put the top foam piece on correctly. There is only one way that fits.
There's a spot on top of the foam piece for the spout to fit nicely.
Close up the box.
If you're going to ship the box, make sure to pack it securely and snugly into another, bigger, sturdy shipping box.