Plain Text Law

Regulation .44 Disinfection of a Pool and Spa.

Regulation .44 Disinfection of a Pool and Spa.Copy Citation

A.
An owner or operator of a public pool or spa shall ensure that a disinfectant or combination of disinfectants is added to the water automatically through an approved chemical feeder to maintain continuously a residual level as specified below:
(1)
Free chlorine shall be between:
(a)
1.5 ppm and 10.0 ppm in pools for swimming and diving and water recreational attractions;
(b)
3.0 ppm and 10.0 ppm in pools for wading or therapy; and
(c)
4.0 ppm and 10.0 ppm in spas;
(2)
The maximum amount of combined chlorine shall be 0.2 ppm for all pools and spas;
(3)
Total bromine shall be between:
(a)
3.0 ppm and 8.0 ppm in pools for swimming and diving and water recreational attractions; and
(b)
4.0 ppm and 8.0 ppm in spas and in pools for wading or therapy;
(4)
For pools and spas using copper and silver ions as a secondary disinfectant in conjunction with chlorine or bromine as a primary disinfectant:
(a)
Copper ions shall be between 0.2 ppm and 1.0 ppm;
(b)
Silver ions may not exceed 0.05 ppm;
(c)
Free chlorine in combination with copper and silver ions shall be between:
(i)
0.5 ppm and 10 ppm in pools for swimming and diving and water recreational attractions; and
(ii)
1.5 ppm and 10.0 ppm in spas and in a pool for wading or therapy; and
(d)
Total bromine in combination with copper and silver ions shall be between:
(i)
1.0 ppm and 8.0 ppm in pools for swimming and diving and water recreational attractions; and
(ii)
3.0 ppm and 8.0 ppm in spas and pools for wading or therapy;
(5)
For pools and spas using an ozone generator, the maximum amount of ozone measured 2 inches above the water surface shall be 0.1 ppm;
(6)
For pools using PHMB, the minimum level of PHMB shall be 30 ppm; and
(7)
For pools and spas using an ultraviolet light/hydrogen peroxide system, the minimum level of hydrogen peroxide shall be 20 ppm.
B.
An owner or operator shall ensure that for public pools and spas using cyanuric acid or a similar chlorine stabilizer, the cyanuric acid is maintained between 30 ppm and 100 ppm.
C.
An owner or operator of a public pool or spa may not use:
(1)
PHMB in a pool or spa that uses jets or sprays;
(2)
PHMB in conjunction with any halogen compound or ozone;
(3)
Cyanuric acid in conjunction with a bromine compound or in an indoor pool or spa; or
(4)
An ultraviolet light/hydrogen peroxide system in conjunction with a diatomaceous earth filter.