What is the result of a high chlorine residual indicated in a DPD test?

A high chlorine residual indicated in a DPD test suggests that there is an excess amount of chlorine present in the water. This situation can lead to multiple issues. It is important to understand that while chlorine is an effective disinfectant, when its levels are too high, it can actually cause irritation to swimmers, making option related to swimmer discomfort a significant concern.

High levels of chlorine can lead to skin and eye irritation, as well as respiratory issues for those exposed to chlorinated water. In a recreational aquatic facility, maintaining appropriate chlorine levels is vital for both the environmental safety and comfort of users. Therefore, a high chlorine residual signals the need for dilution with water to restore proper balance, making this crucial for ensuring a safe swimming environment.

While effective disinfection is a benefit of chlorine, the focus on the direct implications of high residual levels emphasizes that maintaining within the acceptable range is necessary for safe swimming. In summary, the consequence of a high chlorine residual is primarily related to potential swimmer irritation and the necessity for dilution to achieve optimal water quality.