Backflow Testing Services

Thompson Fire & Safety Supplies, Inc. has vowed to evolve and grow to meet our expanding customer needs. We are excited to announce Thompson Fire & Safety Supplies, Inc., is now certified to service backflow preventers.

What is Backflow?

All plumbing systems intend for water to flow in one direction. Backflow is the undesirable reversal of the normal flow of water in a plumbing system. It occurs when water flows backward from a potentially polluted or contaminated source into the clean water supply. This reversal can lead to the contamination of the drinking water with harmful substances, posing serious health risks to consumers. Check valves or one-way gates to prevent water from flowing in the wrong direction. 

Backflow prevention systems are required by Indiana Code: (327 IAC 8-10). Your local water provider and IDEM monitor and regulate backflow systems. Indiana requires backflow prevention systems to be tested annually. According to the Indiana Code, backflow prevention systems are considered past due 1 year and 1 day from the date they were last tested. 

Here's why backflow prevention is crucial:

• Protection of Drinking Water Quality:
• The primary purpose of backflow prevention is to safeguard the quality of drinking water. Contaminated water can carry bacteria, chemicals, and other pollutants that pose health risks when consumed.
• Prevention of Waterborne Diseases:
• Backflow can introduce pathogens and contaminants into the water supply, potentially leading to waterborne diseases. Preventing backflow helps reduce the risk of illnesses caused by polluted water.
• Compliance with Regulations:
• Many regions have regulations and standards in place that mandate the installation of backflow prevention devices. Compliance with these regulations is essential to ensure the safety of the water supply and avoid legal implications. Indiana Code indicates backflow prevention systems are considered past due 1 year and 1 day from the date they were last tested.  
• Protection of Public Health:
• Backflow prevention is a critical aspect of public health protection. It helps maintain the integrity of the water distribution system, preventing the spread of diseases and ensuring that water remains safe for daily use.
• Prevention of Cross-Connection Hazards:
• Cross-connections are points in a plumbing system where potable water comes into contact with non-potable water. Backflow can occur at these points, allowing contaminants to enter the drinking water supply. Backflow prevention devices mitigate the risks associated with cross-connections.
• Avoidance of Property Damage:
• Contaminated water resulting from backflow can cause damage to plumbing systems, appliances, and fixtures. Backflow prevention helps prevent costly repairs and replacements due to water contamination.
• Maintenance of Water System Integrity:
• Backflow prevention devices contribute to the overall integrity of the water distribution system. By ensuring a unidirectional flow of water, these devices help maintain the reliability and efficiency of the water supply.
• Responsibility for Water System Users:
• Property owners and water system users have a shared responsibility to prevent backflow. Regular testing, maintenance, and compliance with local regulations are essential to fulfilling this responsibility.



In summary, backflow prevention is vital for protecting public health, maintaining water quality, and ensuring the proper functioning of water distribution systems. Thompson Fire & Safety Supplies, Inc., is looking forward to better serving our customers by servicing your backflow system while continuing to meet your fire protection needs. Please give us a call or message us so we schedule a time to meet with you to review your system.