Perfect Water Factor Ranges

The following ranges are listed in PPM (parts per million).  This is the same a Milligrams per Liter (mgL).  The chemicals are also arranged in the proper order of adjustment from top to bottom.  In other words, don't try to adjust the PH before you have the Total Alkalinity in the Perfect Range.

You will have a Perfect Pool or Spa if you maintain these levels and follow basic routine maintenance.

Perfect Pool and Spa Perfect Ranges:

Chemical Minimum Perfect Range (Low) Perfect Range (High) Maximum Pool or Spa Temperature Sanitizer Used
Free Chlorine 1 1 3 3 Pool Only Any Any
Free Chlorine 2 3 5 10 Spa Only Any Any
Total Chlorine Same as Free CL Same as Free CL Same as Free CL Same as Free CL Same as Free CL Same as Free CL Same as Free CL
Combined Chlorine 0 0 0 0 Pool or Spa Any Any
Total Bromine 2 2 4 4 Pool Only Any Any
Total Bromine 2 3 5 10 Spa Only Any Any
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 80 130 180 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
pH 7.2 7.4 7.6 7.8 Pool or Spa Any Any
Calcium Hardness 150 200 400 1000 Pool or Spa Any Any
Stabilizer/Conditioner 10 30 50 100 Pool or Spa Any Any
SuperChlorination Cl [10 times combined chlorine] Pool or Spa Any Any
Shock Cl 10 10 30 30 Pool or Spa Any Any
Saturation Index - 0.3 + 0 + 0.5 + 0.5 Pool or Spa Any Any

Perfect Pool and Spa Software! Users: Test water and input all results into the main screen. Follow recommendations for exact amounts, when and in what order.

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