1. Do not forget to enter your pool water volume in the field Pool Size

2. Enter the measured or known TA value in the field Current TA.

3. Enter the new TA value that you want to get in field TA target and then press Enter

4. Or move the slide selector below the field to the desired TA value.

5. The CALCULATOR shows how much baking soda (Sodium Bicarbonate) you have to add to achieve the new higher TA level

If you entered a new TA lower than the current TA, you try to Lower TA. Add muriatic acid to lower pH. Muriatic acid also lowers the TA. Add the muriatic acid gradually, testing pH and TA each time. When you reach the 'TA target' value, the process is over. But if you bring pH down to 7.0 before the TA bring down to the 'TA target' value, stop adding acid and aerate the water to raise pH to 7.2. Then begin again adding acid and repeat the process until 'TA target' value is first achieved. Click here for more information (caming soon)