HARMSCO, INC.
P.O. BOX 14066
North Palm Beach, Florida 33408
PLACE
STAMP
HERE
HARMSCO, INC., P.O. Box 14066, North Palm Beach, FL 33408 U.S.A.
(561) 848-9628 • (800) 327-3248 • Fax: (561) 845-2474
HIM-7/98-2.5M
UPFLOW CARTRIDGE FILTRATION
A F L O R I D A C O R P O R A T I O N
®
SUGGESTED CHEMICAL OPERATIONAL PARAMETERS
The following information is provided by the National Spa and Pool Institute
CHLORINATION
Min
Ideal
Max.
Disinfectant Levels
Free Chlorine, PPM
1.0
1.0-3.0
5.0
Combined Chlorine, PPM
None
None
0.2
CHEMICAL VALUES
PH
7.2
7.4-7.6
7.8
Total Alkalinity, PPM
60
80-100
180
Total Dissolved Solids, PPM
300
1000-3000
3000
Hardness
150
200-400
500-1000
REMEDIAL PRACTICES
Superchlorination
Monthly
When combined
Weekly
chlorine is
0.2 or more
Note: Some high use spas and pools may need superchlorination three times a week or more.
COMMENTS:
* Superchlorinate Regularly
* combined chlorine is eliminated by Superchlorination
NOTE: In order to maintain a proper chemical balance, you must have a good test kit and know
how to use it.
To protect against electrolysis, all metal components of the water circulation and heating
systems must be connected by wire to ground the entire system.
Filter housings must be grounded
DO NOT STORE CHEMICALS NEAR FILTER HOUSING
