Maintaining correct levels of free and total chlorine in recreational waters is essential. Incorrect chlorine levels can pose various risks to both swimmers and the aquatic environment.

• Increased Risk of Microbial Contamination: Insufficient free chlorine fails to effectively neutralize harmful pathogens, increasing the risk of waterborne illnesses.
• Algal Growth: Low chlorine levels can lead to algal blooms, which can cloud water and create slippery surfaces, posing safety hazards.

• Skin and Eye Irritation: Excessive free chlorine can cause irritation to the skin and eyes of swimmers.
• Respiratory Issues: High levels of chlorine in the air around pools, particularly in indoor settings, can lead to respiratory discomfort or exacerbate conditions like asthma.

• Strong Chlorine Odor and Irritation: Contrary to popular belief, a strong chlorine smell is often due to high levels of chloramines (combined chlorine), not free chlorine. Chloramines can irritate the skin, eyes, and respiratory tract.
• Reduced Water Quality: High levels of chloramines indicate a high level of contaminants in the water, reflecting poor water quality.

Failing to maintain the recommended chlorine levels can lead to non-compliance with health and safety regulations. Regular and accurate testing is vital to ensure compliance and to safeguard the health of swimmers.

Incorrect chlorine levels in water discharged from pools and spas can negatively impact the environment. Chlorine can be toxic to aquatic life, highlighting the need for proper water treatment before discharge.

Accurately maintaining free and total chlorine levels is crucial for the safety and enjoyment of recreational water facilities. It protects swimmers from health risks and ensures a pleasant swimming experience. Adhering to recommended chlorine levels also aligns with environmental responsibilities and regulatory compliance.