Guidelines for the proper care &
maintenance of public swimming pools
Types of Bacteria:
Properly chlorinated swimming pools can address microbes as listed
|E. coli O157:H7 Bacterium
||Less than 1 minute
|Hepatitis A Virus
||About 16 minutes
||About 45 minutes
||About 15,300 minutes or
Bacteriological quality ensures that pool water is
free of coliform bacteria contamination.
The pool water must be 0.5 or less NTU (nephelometric turbidity
units) and the main drain grate must be readily visible from the
Chemicals used in controlling the quality of the pool water must be
tested and approved using the National Sanitation Foundation (NSF)
Standard 60, 1996a 1997.
The following parameters must be adhered to for pool water
pH 7.2 to 7.8.
Free chlorine residual shall be 1 milligram per liter (mg/L) to 10
mg/L, inclusive, in conventional swimming pools and 2 mg/L to 10
mg/L, inclusive, in all other type pools such as spa-type pools and
interactive water fountains; bromine residual shall be 1.5 mg/L to
10 mg/L, inclusive, in conventional swimming pools and 3 mg/L to 10
mg/L, inclusive, in all other type pools. Except that, the following
maximum disinfectant levels shall apply to indoor conventional
swimming pools: 5 mg/L free chlorine or 6 mg/L bromine.
Cyanuric acid 100 mg/L maximum in pools and 40 mg/L in spa pools
Quaternary ammonium 5 mg/L maximum
Copper 1 mg/L maximum
Silver 0.1 mg/L maximum
After treatment for breakpoint chlorination and algae prevention,
use of the pool can be resumed when the free chlorine levels drop to
Test kits are required to be on the premises of all pools to
determine free active chlorine and total chlorine using
N,N-Diethyl-p-Phenylenediamine (DPD), or bromine level, total
alkalinity, calcium hardness, and pH.
Test kits shall be provided if the corresponding chemicals are used:
cyanuric acid, sodium chloride, quaternary ammonium and copper.
When silver is added as a supplemental disinfectant, a water
analysis must be done every six months and be submitted to the
department upon request.
The pool recirculation system must be operated at all times when the
pool is open for use. The recirculation system may be shut off three
hours after the pool closes but must resume operation three hours
before opening the pool. Shut down time must be controlled by a time
clock. The pool water level must be maintained at an elevation
suitable for continuous skimming without flooding during periods of
The keeping of a daily record of information regarding pool
operation, using the Monthly Swimming Pool Report DH 921 3/98,
obtained from the local county health department, shall be the
responsibility of the pool owner or operator. Customized report
forms may be substituted provided they contain the appropriate
information and are acceptable to the department. The completed
report must reflect manually conducted pool water tests for pH and
disinfectant levels at least once every 24 hours and shall be
retained at the pool or submitted monthly as required by the local
health department. DH 921, 3/98, may be obtained at the local county
health department. For the purposes of daily testing of the pool
water and keeping of the Monthly Swimming Pool Log, the requirements
of Rule 64E-9.018, F.A.C., are not applicable.
Rules for public swimming pools are contained in Chapter
64E-9 F.A.C. Pool operators are required to maintain a DAILY log
on pool chemistry and operation, form