Pool Water Chemistry

What Are Chloramines?

Chloramines are compounds formed when chlorine reacts with nitrogen-containing contaminants in pool water.

Paired colored symbols in pool water represent chloramine compounds, with an upward arrow showing that some can pass into air above water; not a molecular structure.
Paired colored symbols in pool water represent chloramine compounds, with an upward arrow showing that some can pass into air above water; not a molecular structure.

Understanding the Concept

Swimmer waste can contribute nitrogen-containing material. Some chloramines can move into the air and contribute to odor and irritation.

Common Misunderstanding

A strong pool odor is not proof of an adequate free chlorine level. Combined chlorine is a test measurement; this entry explains the compounds.

Related terms

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