1) What is monochloramine and how is it used in facilities?

Monochloramine is a chlorine-based disinfectant used in buildings as a secondary (supplemental) method to maintain a stable disinfectant residual after water enters the facility. A properly controlled system maintains consistent levels across intricate piping so the residual reaches remote outlets.

2) Why choose monochloramine for secondary/supplemental disinfection?

Monochloramine is valued for its ability to maintain a consistent residual within complex plumbing where disinfectant levels can otherwise drop. The approach is designed to be efficient, controlled, and suitable for continuous use at the facility point of entry.

3) Where in the water system is a monochloramine system installed?

These systems are typically installed at the building’s point of entry. They dose and control monochloramine to maintain target levels throughout downstream piping and fixtures.

4) What features should a modern monochloramine system include?

• Remote access and configuration
• 24/7 data recording and trending
• Web access and alarm emails
• Automatic shutdown under alarm conditions
• Leak detection
• Password-protected controller access

5) Is monochloramine safe for potable water, and what certifications matter?

Systems marketed for potable-water use should demonstrate compliance with drinking-water contact standards. Look for independent certification (for example, Truesdail) showing conformance with NSF/ANSI/CAN 61 (materials in contact with drinking water) and NSF/ANSI/CAN 372 (lead content). Product documentation may also note regulatory acceptance for supplemental disinfection applications.

6) Does monochloramine help address Legionella risk?

Monochloramine is used as part of an overall risk-reduction strategy for opportunistic waterborne pathogens such as Legionella. It maintains a disinfectant residual throughout the system. Facilities should verify performance through appropriate water testing during and after remediation and as part of ongoing verification/validation.

7) How does secondary/supplemental disinfection differ from primary municipal disinfection?

Municipal treatment provides primary disinfection before water reaches the building. Once inside, disinfectant levels can decline due to water age, temperature, and complex piping. Secondary (supplemental) disinfection at the facility maintains target levels to support an ongoing residual.

8) How are targets, monitoring, and alarms typically handled?

A building-scale system continuously monitors and records operating conditions, provides alarms when values deviate from set limits, and can perform safe automatic shutdown under alarm conditions. Remote access enables review of trends and adjustments as needed.

9) How does monochloramine fit into a Water Management Plan?

Secondary disinfection should be integrated with a facility Water Management Plan. This includes verification (ongoing monitoring) and validation (periodic testing) to confirm that the approach is performing as intended over time.

10) Who can help determine whether monochloramine is appropriate for a given facility?

Facilities should consult an independent waterborne pathogen specialist to assess suitability, design the approach, and guide implementation and testing around remediation and long-term control.

11) Where can I get product literature or request a quote?

You can review product literature and contact pages for more details, including downloads and quote requests:

• Monochloramine Systems (overview, certifications, features)
• Monochloramines for Water Disinfection
• Monochloramine System
• Secondary Disinfection Systems
• Legionella Control Systems
• Contact Page for Monochloramine System Quotes