What is the recommended chlorine disinfection contact time for a 400-gallon water trailer?

The recommended chlorine disinfection contact time for a 400-gallon water trailer is 30 minutes. This duration is essential to ensure that chlorine has sufficient time to effectively kill pathogens and disinfect the water. The process of disinfection relies on chlorine not only being present in the water but also having enough time to react with any microorganisms that may be present, such as bacteria, viruses, and protozoa.

If the contact time is less than recommended, there is a risk that the disinfection process may not be thorough, potentially allowing harmful pathogens to survive. The 30-minute contact time is a standard guideline that balances efficiency and safety, ensuring that the water is adequately treated to meet health standards before being distributed for use. In military settings, where maintaining high standards of hygiene and health is critical, following these recommended practices ensures the safety and well-being of personnel.