After hyperchlorinating, how long should you flush chlorine from the water lines?

Flushing chlorine from water lines after hyperchlorination is an important step to ensure that residual chlorine levels return to acceptable limits for safety and usability. The correct duration for flushing, which is four minutes, is based on guidelines that consider both the efficacy in reducing chlorine levels and the potential impact on both human health and plumbing systems.

While flushing for a duration that is too short may not adequately remove the chlorine, thus prolonging exposure to high levels of this chemical, four minutes has been determined as sufficient to clear the majority of the chlorine from the lines. This time frame allows for effective water exchange in the pipes, ensuring that any residual chlorine is significantly reduced. It's crucial to balance thoroughness with efficiency, as longer flushing times might waste water without providing additional benefits to chlorine removal.