All of us have had the opportunity to use a litmus paper in science class. The litmus paper was used as a tool in determining the acidic or alkaline status of a substance. When we measure the pH level of a substance, we sometimes try to establish its acid-base equilibrium. The results derived from a pH scale can be used to determine whether a substance has acidic or alkaline properties. A pH scale has values that range from 0 – 14. Every value within the pH scale can determine whether the substance being measured is acidic, neutral or alkaline. When the pH scale has a value of between 0 – 6 the substance being measured is considered to be acidic. When the value of the pH scale is anywhere between 8 – 14 the substance being measured is considered to be alkaline. A neutral conclusion on the pH scale is represented with a value of 7. The measured pH level of water which is safe for consumption should be within the range of 7 – 8 on the pH scale.

pH level meaning

The pH value of water is very effective in indicating whether the water being tested is soft or hard water. Water that may have a pH value of 6 – 8.5 is safe for consumption. Water that is within this pH range is considered neither too alkaline or acidic for it to harm the human body. Water that has a higher pH value of above 8.5 is hard water and water that has a pH value of below 6 can comprise of toxic metals and maybe corrosive materials. The way in which water is measured based on its pH level and alkalinity are very important in establishing whether the water is corrosive.

Natural Alkaline Water

Water that is naturally alkaline is safe to drink. Alkaline water has minerals in it that make it taste sweeter than neutral water and has been considered to have more health benefits which include a cleansed colon, boosted immunity and a metabolism increase.

Tap Water

Tap water has a varied pH level dependent on its source or origin. The pH of drinking water can be affected by factors such as cleaning agents or chemical detergents present in the water, an area’s bedrock composition and the methods in which water is treated by municipal water processing plants.


When individuals consume water which is comprised of high alkaline or acid levels, it can be harmful to them. The Environmental Protection Agency (EPA) warns that water which is acidic or alkaline is very harmful but if water has a pH value of 6 – 8.5 it is within its set standards. Water which has a low pH level has a metallic or bitter taste can play a part in fixture corrosion. Water which has a high pH level has a baking soda taste, fixture deposits and has a slippery feel to it.

Water with different pH levels

Water that has low pH levels can be metallic and corrosive. It also can leave green or blue stains on sinks and drains because of the ability it has to breakdown metallic fixtures which are in your plumbing system. High pH or alkaline water leaves a scale and has a bitter taste. It also makes detergents and soap harder to lather.

The human body can maintain a pH equilibrium regularly which is not affected by water intake. Hard water has been known to cause aesthetic problems. It is therefore important to drink water that has a pH of 6 – 8.5 because it is healthy and safe for consumption.