Use and Care Guide

Suggested Standards - Swimming Pools
Minimum
Ideal
Maximum
Free Chlorine, ppm
1.0
1.0-3.0
3.0
Combined chlorine, ppm
None
None
0.2
Bromine, ppm
2.0
2.0-4.0
4.0
pH
7.2
7.4-7.6
7.8
Total Alkalinity, ppm
60
80-100
180
(for Liquid Chlorine, Cal-Hypo and Lithium Hypo)
100-120
(for gas chlorine, dichlor, trichlor and bromine
compounds)
TDS,ppm
300
1000-2000
3000
Calcium Hardness, ppm
150
200-400
500-1000+
Cyanuric Acid, ppm
10
30-50
150
(except where limited by Health Dept.
requirements, often to 100 ppm)
Suggested Standards - Spas
Minimum
Ideal
Maximum
Free Chlorine, ppm
1.0
1.0-3.0
10.0
Combined chlorine, ppm
None
None
0.2
Bromine, ppm
2.0
2.0-4.0
10.0
pH
7.2
7.4-7.6
7.8
Total Alkalinity, ppm
60
80-100
180
(for Liquid Chlorine, Cal-Hypo and Lithium Hypo)
100-120
(for Gas Chlorine, Dichlor,Trichlor and Bromine Compounds)
TDS,ppm
300
1000-2000
3000
Calcium Hardness, ppm
150
200-400
500-1000+
Cyanuric Acid, ppm
10
30-50
150
(except where limited by
Health Dept. requirements,
often to 100 ppm)