Acceptable Pool Chemistry Ranges

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Pool Chemical 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.

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

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