Biological Value (Maintaining of adequate sanitizer levels is critical to prevent growth of algae and bacteria).

 

Minimum

Ideal

Maximum

Comments

Visible Algae

NA

NA

None

If algae growth is observed, recommendations may include but are not limited to:

Superchlorinate the pool

Use approve algicide according to label directions

Supplement with brushing and vacuuming

Bacteria

None

None

Refer to Local Code

If bacteria count exceeds local health department requirements:

Superchlorinate and follow proper maintenance procedures

Remedial Practices

 

Minimum

Ideal

Maximum

Comments

Superchlorination

 

 

 

Some symptoms that may indicate a need for superchlorination are:

Cloudy water

Slime formation

Musty odors

Difficulty in maintaining sanitizer residuals

Algae and bacterial counts

Shock Treatment, dosage in ppm

10

 

 

Some conditions that may indicate a need for shock treatment are:

Cloudy water

Difficulty in maintaining a sanitizer residual

Periods after heavy swimmer use

Adverse weather

Non-chlorine shocks are not sanitizers. They are effective in destroying organic contaminents but should not be used to treat visible algae or bacterial infestation.