The Importance of Alkalizing RO Water
Reverse osmosis (RO) systems are highly effective water purifiers, removing up to 99% of dissolved solids, heavy metals, and other contaminants. However, this intensive filtration process also strips the water of essential minerals like calcium, magnesium, and potassium, which are crucial for our bodies. This demineralization often results in water with a slightly acidic pH (below 7), which can taste flat and potentially lead to plumbing corrosion over time. Restoring the mineral content and raising the pH not only improves the taste but also adds back these valuable nutrients.
DIY Methods to Alkalize Your Water
For those who prefer a simple, hands-on approach, several kitchen staples can effectively raise the pH of RO water. These methods are cost-effective but require manual effort for each batch.
Using Baking Soda
Baking soda (sodium bicarbonate) is naturally alkaline and a very common household item.
- How to do it: Add about 1/8 to 1/4 teaspoon of food-grade baking soda to 8 ounces of RO water.
- Pros: Extremely cheap and readily available. Works quickly to raise pH.
- Cons: Can impart a slightly salty or soapy taste, which might be off-putting for some. Adds sodium to your diet, so monitor intake if on a low-sodium regimen.
Adding Lemon and Himalayan Salt
While lemons are acidic outside the body, they produce an alkaline ash once metabolized, creating an alkalizing effect. Combining this with mineral-rich Himalayan salt offers a natural mineral boost.
- How to do it: Slice a fresh lemon or lime and add a few wedges to a pitcher of RO water. Add a tiny pinch of Himalayan salt. Allow to infuse for several hours or overnight in the refrigerator.
- Pros: Natural and refreshing flavor. Adds a variety of trace minerals from the salt.
- Cons: Slow method requiring pre-planning. Mineral infusion is less precise than other methods.
Using Alkaline Pitchers
Alkaline water pitchers utilize a special filter cartridge containing mineral beads or ceramic balls.
- How to do it: Simply fill the pitcher with your RO water and allow it to filter through.
- Pros: Convenient and portable. Provides a steady supply of alkalized water for drinking.
- Cons: Cartridges require periodic replacement. Less effective for remineralizing than dedicated filters and may not add significant mineral content.
Professional and Automated Methods
For a more convenient and consistent solution, particularly for daily household use, consider these options.
Inline Remineralization Filters
These cartridges are installed directly into an existing RO system as a final stage of filtration.
- How to do it: A professional plumber or a handy DIYer can add an inline alkaline or remineralization cartridge to your system.
- Pros: Consistent, automated remineralization and pH balancing for all your RO water. Adds essential minerals like calcium and magnesium. Can improve the taste of coffee and other drinks made with the water.
- Cons: Higher initial installation cost and required cartridge replacements.
- For more information: Frizzlife provides a detailed guide on how to choose and install remineralization filters.
Mineral Drops
Pre-formulated mineral drops offer a concentrated, precise way to reintroduce minerals.
- How to do it: Add the recommended number of drops to a glass of RO water, stir, and drink.
- Pros: Excellent for precise mineral dosing. Portable for use while traveling or at work.
- Cons: Not practical for large volumes of water used for cooking. Can be expensive over time.
Comparison of Methods to Alkalize RO Water
| Method | Cost | Effort | Mineral Content | Consistency | Taste Impact |
|---|---|---|---|---|---|
| Baking Soda | Very Low | High (per use) | Low (sodium/bicarbonate) | Manual | Can be salty |
| Lemon & Salt | Low | High (per use) | Low-Moderate | Manual | Adds citrus flavor |
| Alkaline Pitcher | Moderate | Low (daily refill) | Low-Moderate | Consistent (until filter expires) | Improved, smoother |
| Inline Filter | High (initial) | Very Low (after setup) | High | Automated | Very good |
| Mineral Drops | Moderate | High (per use) | High (customizable) | Manual | Varies by brand |
How to Test the pH of Your RO Water
Before and after alkalizing, it's wise to test your water's pH to see the effectiveness of your method.
- Digital pH Meter: Provides the most accurate reading. Ensure the meter is properly calibrated, as low-TDS water can sometimes cause unstable readings.
- pH Test Strips: A simpler and more affordable option. Dip the strip into the water and compare the color to the provided chart. Note that low-mineral RO water may give a less defined color change.
- Liquid pH Test Kit: Uses a solution that changes the water color. Match the color to a chart.
Conclusion: Choosing the Right Method
Making your RO water alkaline at home is a straightforward process with multiple options to fit your lifestyle and budget. For those on a tight budget or seeking a quick fix for a single glass, simple DIY options like baking soda or lemon are effective. For daily, convenient, and consistent results for your entire household, investing in a high-quality inline remineralization filter for your RO system offers the best balance of health benefits, taste improvement, and convenience. By reintroducing essential minerals, you can transform your purified water from merely clean to truly revitalizing.
Is alkaline water from RO safe?
Yes, adding essential minerals back to your RO water to make it alkaline is generally considered safe for most people, as long as it's done correctly. A good alkaline RO water system simply mimics natural mineral water by adding beneficial minerals like calcium and magnesium back into the water, which are also vital for bodily functions. However, as with any dietary change, those with pre-existing health conditions, especially kidney-related issues, should consult a doctor before changing their water intake.
Health Benefits of Drinking Alkaline Water
Research on the benefits of alkaline water is ongoing, and claims should be taken with consideration. Some reported benefits include improved hydration, especially after exercise, and a better acid-base balance in the body. Certain studies suggest it may help with digestion and support bone health. For more detailed information, Healthline offers a comprehensive overview of the benefits and risks of alkaline water. Healthline
Final Takeaway
The most effective method for you depends on your priorities: convenience, cost, and the level of remineralization desired. By following the steps outlined, you can easily and safely create mineral-rich, alkaline water in your own home.
