Total Alkalinity (T.A)
Total Alkalinity (T.A) and pH are two separate chemicals but are very much related in maintaining a correct water balance. T.A acts as a buffer for pH, so the T.A must be at the correct level before addressing the pH.
The ideal T.A level is 80 – 120 ppm. When T.A is too high, the pH will be high and scale can form on your Pool or Spa/Hot Tub surfaces. If it’s too low, the pH level can fluctuate rapidly and the water can become corrosive.
If your T.A level is too high, you will need to add T.A Reducer (Hydrochloric Acid).
If your T.A level is too low, you will need to add T.A Plus (Sodium Bicarbonate). This increases the Bicarbonates in the water, therefore increasing the level.
Remember, T.A and pH are closely related so it is important that you test pH after altering the T.A. It may take a few treatments to reach the correct T.A buffering level to keep the pH in the optimum range but it is worth every minute spent on it.