How do I test the pH of my swimming pool
Tips for testing pool water pH
Testing the pH in your swimming pool is a critical part of effectively managing the water in your pool and getting the maximum enjoyment from it.
The color-comparison method is the type of test used most commonly by residential pool owners. A chemical called “Phenol-Red” is dropped into a pre-determined amount of water, and the color resulting is compared to a chart. If the water turns yellow, this usually indicates a pH below 7 (acidic water). If the water is tan to brown, this usually indicates a neutral pH. If the water turns dark pink, the pH is probably above the desired range (7.2 to 7.6).
Tips to remember
Things to remember are that, high chlorine contents will give you inaccurate readings, because the chlorine actually “bleaches” the results. Most people don’t get alarmed by high pH contents, but you should be aware that the higher your pH is, the longer it takes to kill bacteria. When your pH is in the proper range, your chlorine is more effective, and does what it was intended to do in your pool.
For accurate test results, get an electronic tester or go to a reputable pool store. Remember, however, that the free-test they perform does not pay the rent. They are there to sell you chemicals, so be cautious about buying everything they recommend.