Oasis Pool Care

Water pH

pH is a measure of how acidic or basic the water is. pH is a logarithmic scale from 0-14, with 7 being neutral. Below 7, a substance is defined as being acidic, while levels above 7 are said to be basic or alkaline. Everything that enters your pool has a pH value. Heard of acid rain? This is rainfall with a very low pH. The human eye, at a pH value of 7.35, is just slightly basic. This is coincidentally, in range with proper pH levels for your pool. 

To have pH in balance, we adjust the water with additions of pH increasers (bases) or pH decreasers (acids) to achieve the range of 7.2 - 7.8. If your testing (recommended daily) of the water shows a pH value below 7.2, the water is in an corrosive (acidic) condition, and we need to add a base to bring the pH into a more basic range and prevent corrosion. Conversely, if the pH is above 7.8, we are in a scaling (basic) condition and must add an acid to bring down the pH to prevent the formation of scale.

Click on a chemical parameter to learn more: pH | Alkalinity | Calcium Hardness | Saturation Index

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