These are diagnostic tools used to measure the concentration of a specific metallic element within the water of a recreational aquatic environment. They provide a quick, visual estimate of the copper level, often indicated by a color change on the strip that is then compared to a reference chart. An example is their use after algaecide treatment to ensure proper metallic ion concentration.
Maintaining appropriate levels of this element is critical for water sanitation and preventing algal growth. However, exceeding recommended limits can lead to staining of pool surfaces and potential health concerns for swimmers. Historically, they have provided a convenient alternative to more complex chemical testing methods, allowing for rapid, on-site analysis.
