
SOME TIPS ON WATER CHEMISTRY
27
Use of algaecides and phosphate removers
Although not normally needed, algaecides and phosphate removers may be used in
conjunction with a Clearwater chlorinator. Consult your pool professional regarding
the presence of phosphates in your local area and always follow manufacturer’s instruc-
tions for treatment.
The chlorine residual level automatically produced by a Clearwater chlorinator is
the best defence against algae and is usually all that is necessary. If algae is observed
however, brush spot thoroughly, adjust pH, super-chlorinate with your Clearwater
chlorinator or manually shock pool water with liquid chlorine (sodium hypochlorite). A
chlorine residual should be measurable within 24 hours. If not, repeat shock treat-
ment. After shocking, check to ensure that the Clearwater chlorinator is maintaining a
residual chlorine level to prevent future algae growth. With extreme algae conditions,
manually shocking the pool is the best option.
Note: Overuse of algaecides can lead to a reduction in chlorine residual because algae-
cides can negatively react with the chlorine produced by the Clearwater chlorinator.
When using algaecides, always follow manufacturer’s instructions and adjust the output
of the Clearwater chlorinator to maintain a residual chlorine level.
The addition of certain chemicals can reduce the effectiveness of chlorine.
Always make sure that proper residual chlorine levels are maintained to avoid
illness.
Use of sequestering agents
In some areas the total hardness of your source water may be unusually high. High
total hardness contributes to scale formation in the pool. Sequestering agents will help
keep minerals in solution, preventing this from happening. Consult your pool
professional about the use of a sequestering agent.
Comentarios a estos manuales