What is a potential consequence of not having backflow prevention devices in a sprinkler system?

The presence of backflow prevention devices in a sprinkler system is crucial to protect the potable water supply from contamination. When these devices are not installed or functioning correctly, a risk arises where non-potable water, which could be contaminated with chemicals, fertilizers, or other pollutants from the irrigation system, could flow back into the public water supply. This backflow can occur due to changes in pressure within the system, creating a pathway for harmful substances to infiltrate clean drinking water sources.

Contaminated water poses serious health risks to the community, as it can lead to waterborne diseases or other health issues when ingested or used for cooking and hygiene. Therefore, the implementation of backflow prevention measures is vital in maintaining water safety standards and ensuring that the water supply remains clean and free from hazardous substances.