1. Do not forget to enter your pool water volume in the field Pool Size
2. Enter the measured or known pH value in the field Current pH.
3. If you use muriatic acid to lower your pool pH, first enter its concentration. Read below, in LOWERING pH how to do it
4. Enter the pH value that you want to get in field pH target and then press Enter
5. Or move the slide selector below the field to the desired pH value.
6. The CALCULATOR displays several chemical products and quantities needed to achieve the new pH
If you try to lower your pool water pH using muriatic acid, please, do first select the concentration of your acid in the field muriatic acid. The muriatic acid is diluted hydrochloric acid , its concentration is expressed in %, the calculator default value is 20%, very commonly found in the market. But you must enter the one wich you're using, you'll find it on the package label. Sometimes the concentration is expressed in degrees Baume (ºBaumé o ºBe), each ºBe is equal to 1.54%. Check options Muriatic acid concentration to be in accordance with the one indicated in the package label.
For people who prefer using a solid product to lower the pH, the CALCULATOR displays the required doses of sodium bisulfate, commonly used for this purpose
If you try to reduce your pool water pH, the calculator will show the amount of pH increaser you have to add. We have selected dray acid (sodium carbonate), widely used for this purpose.
The amounts of chemical products displayed by this calculator to lower and rise the pH are purely indicative, since several factors that strongly affect the ph of the water are not taken into account, such as alkalinity, cyanuric acid, and some other parameters. The deviation can be even bigger when the difference between the current pH and the target pH becomes higher, and get bigger as we move away from values close to 7 (above and below). Therefore they shall be used as a starting point. We suggest to add the ph-Plus or pH-Minus gradually and test for the pH after each time, until we get the desired value. For more detail, click on this link (coming soon).