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What is pH in Water?

Water is essential, but have you ever wondered about the pH in water? pH is a way to measure how acidic or basic water is, and it plays a crucial role in our health and the environment. This blog post will explore what pH means, why it’s important, and how it affects our drinking water.

Whether you’re curious about the science behind your tap water or just want to understand what those numbers mean, this guide will break it down in a simple and fun way. From understanding high and low pH levels to finding the best pH for drinking, we’ve got it all covered!

Table of Contents:

1. Intro

2. What’s pH in Water?

3. What’s the Deal with pH Levels?

4. When Water is Basic (High pH)

5. When Water is Acidic (Low pH)

6. What’s the Best pH for Drinking?

7. Want to Know More?

8. Conclusion

9. FAQ

10. References


Welcome to the fascinating world of pH in water! pH stands for “potential of hydrogen,” and it’s a way to measure how acidic or basic a substance is. But why should we care about pH? It affects everything from the taste of your drinking water to the health of fish in rivers and lakes. Understanding pH is not just for scientists; it’s about our daily lives too. Whether you’re a homeowner concerned about the quality of your tap water or a student curious about chemistry, this guide will help you understand the importance of pH in water.

What’s pH in Water?

pH is like a thermometer for water, but instead of measuring temperature, it measures how acidic or basic the water is. On the pH scale, a value of 0 is super acidic (like lemon juice), and a value of 14 is super basic (like bleach). Right in the middle, at 7, is pure water, which is neutral. The pH level can tell us a lot about water’s quality and suitability for different purposes, from drinking to agriculture. It’s a vital aspect that water treatment professionals, like SA Clean Water, consider when providing safe and tasty water.

Water Quality Testing

What’s the Deal with pH Levels?

The pH scale ranges from 0 to 14, and it tells us a lot about water. Substances that are neither acidic nor basic, like pure water, are neutral and have a pH level of 7. But in the real world, things like rocks, human activities, and even our own bodies can change this number. For example, rainwater can become acidic because of pollution, and this “acid rain” can harm plants and animals. Even the food we eat can change our body’s pH level. Understanding pH levels helps us make informed decisions about water treatment and consumption.

When Water is Basic (High pH)

Water with a pH level above 7 is called basic or alkaline. Some people believe that alkaline water is better for health, but experts say it’s not necessarily true. High pH levels can be caused by things like dairy or coal pile runoff, draining from wetlands, liquid industrial waste, and power plants. Depending on your location, these factors may impact your home’s water quality. But most of the time, natural minerals and rocks are what affect your tap and drinking water pH. If you’re concerned about high pH levels, consider using drinking water filter systems to ensure optimal water quality.

When Water is Acidic (Low pH)

If water has a pH level below 7, it’s considered acidic. Acidic water can be caused by industrial landfills, cement or soap manufacturing, limestone gravel roads, agricultural lime, and certain forests. Most sources of tap water are not directly exposed to these extremes, but other factors can still impact acidity. Low pH levels can cause metals to leach from your home plumbing and get into your water. Acidic water may require treatment, and hot & cold water dispensers can be a convenient solution for providing balanced pH water.

What’s the Best pH for Drinking?

The ideal pH for drinking water is between 6.5 and 9. Your ideal tap water pH value will depend on your location, preferences, and needs. Some people may prefer higher pH levels, like bottled mineral water, while others might enjoy a more neutral taste. But pH value can have further implications, such as causing a metallic taste or leading to scale buildup. It’s essential to find the right balance for your health and enjoyment. SA Clean Water’s drinking water filter systems offer a range of solutions to ensure the best pH for your drinking water.

Drinking Water

Want to Know More?

Understanding pH can help you make better choices about what you drink and even how you cook. If you have water problems like metallic taste or blue-green stains, it might be time to check your water’s pH. Professional pH water tests can give you accurate information and support. Many pH problems can be solved by a whole-house water filtration system, like the 75 GPD Reverse Osmosis System. Explore more about drinking water filter systems and hot & cold water dispensers to find the perfect solution for your home.


Understanding pH in water isn’t just for scientists; it’s something we all can learn about. Knowing the pH levels of our water helps us make informed choices about what we drink and use in our homes. It’s about our health, our environment, and our quality of life. So the next time you take a sip of water, you’ll have a newfound appreciation for what’s in your glass! Whether you’re looking to improve your home’s water quality or just curious about the science behind your tap, understanding pH is a valuable step towards a healthier and happier life.


Q: What is pH?

A: pH is a measure of how acidic or basic a substance is.

Q: Why is pH important in water?

A: pH affects the taste, quality, and safety of water.

Q: Can I test the pH of my water at home?

A: Yes, you can use home testing kits or consult a water expert.

Q: Is high pH water better for drinking?

A: Not necessarily. Experts recommend a pH value between 6.5 and 9 for drinking water.

Q: What can change the pH of water?

A: Many things, like rocks, human activities, factories, and natural minerals, can change the pH of water.


1. U.S. Environmental Protection Agency (EPA)

2. World Health Organization (WHO)

3. U.S. Geological Survey (USGS)

4. Mayo Clinic

5. Centers for Disease Control and Prevention (CDC)

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