Water Balance: Difference between revisions
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Matt Parnell (talk | contribs) |
Matt Parnell (talk | contribs) (→pH) |
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[https://en.wikipedia.org/wiki/PH pH] is the "potential of Hydrogen"; a scale specifying the acidity or basicity of a solution, measured on a scale from 0 to 14: | [https://en.wikipedia.org/wiki/PH pH] is the "potential of Hydrogen"; a scale specifying the acidity or basicity of a solution, measured on a scale from 0 to 14: | ||
=== Testing === | |||
pH is a colorimetric measurement that uses a color indicator to identify pH ranges. Most tests use phenol red, with a test range of 6.8 to 8.4. When testing pH, it is important to carefully understand and follow the directions provided with test kit. | |||
=== False Readings === | |||
Sometimes, high levels of chlorine will quickly convert phenol red into a new indicator that is dark purple when the pH is above 6.6. A common mistake would be to confuse the purple color for dark red and wrongly add acid to the pool. | |||
=== Background === | |||
* A pH of 7 is neutral. | * A pH of 7 is neutral. | ||
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The ideal range of pH is targeted to be 7.4 to 7.6. A common myth is that this is very close to the pH of the human eye, often cited as having a pH of 7.5. However, this [https://www.ncbi.nlm.nih.gov/pubmed/7469869 isn't quite the case]. | The ideal range of pH is targeted to be 7.4 to 7.6. A common myth is that this is very close to the pH of the human eye, often cited as having a pH of 7.5. However, this [https://www.ncbi.nlm.nih.gov/pubmed/7469869 isn't quite the case]. | ||
== Calcium Hardness == | == Calcium Hardness == | ||