TOTAL ALKALINITY:

Perfect Range 80 - 155 PPM (depending on temperature and sanitizer)

Temperature + Total Alkalinity + pH + Calcium Hardness + Stabilizer Adjustment + TDS = Saturation Index

Total Alkalinity is a measure of sodium bicarbonate (commonly known as baking soda) in solution.  It's function is to buffer large changes in pH and prevent "pH Bounce".   It helps to stabilize pH by absorbing the acid and bases in the water.  Total Alkalinity is a component factor in calculating the saturation index therefore it also affects water balance.  An increase in total alkalinity also increases saturation index which increases scaling.

You should always adjust total alkalinity FIRST to establish a minimum of 80 PPM before attempting to adjust the pH, calcium or stabilizer.

Perfect Ranges:

Total Alkalinity 60 80  100 180 Pool or Spa Above 52 F Ca, Li, Na hypochlorite
Total Alkalinity 60 100 120 180 Pool or Spa Above 52 F DiChlor, TriChlor or Br
Total Alkalinity 60 100 120 180 Pool or Spa 47 to 52 F Ca, Li, Na hypochlorite
Total Alkalinity 60 100 130 180 Pool or Spa 47 to 52 F DiChlor, TriChlor or Br
Total Alkalinity 60 80 155 180 Pool or Spa Below 47 Ca, Li, Na hypochlorite
Total Alkalinity 60 100 155 180 Pool or Spa Below 47 DiChlor, TriChlor or Br

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