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What is back flow and why is a Back Flow Preventer required?
Back Flow is the unwanted flow of a non-potable substance back into the consumer’s plumbing system and/or public water system. Cross Connection is a point in a plumbing system where the potable water supply is connected to a non-potable source. Contaminants can enter the drinking water system through uncontrolled cross connections when backflow occurs.

There are generally two types of backflow: back-siphonage and backpressure. Back-siphonage may occur during water main breaks, when repairs or maintenance are done on the water mains, when shutting off the water supply, when the fire department is using a fire hydrant, etc. Backpressure can occur when the potable water supply is connected to another system operated at a higher pressure or has the ability to create pressure. Principal causes are booster pumps, pressure vessels, and elevated plumbing.

The requirement for a backflow preventer on all automated irrigation systems is intended to mitigate health hazard concerns. More information can be found via the IEPA’s website availablehere.

Public Works

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1. What is back flow and why is a Back Flow Preventer required?
2. Who needs to have their backflow prevention device tested?
3. Who requires RPZ or Backflow Preventer testing?
4. Why does the water have chlorine taste and smell? What can I do to remove it?
5. What causes the tiny air bubbles or cloudiness in my water?
6. How do I report a possible water main break?
7. How do I apply for a temporary watering exemption?
8. When does my garbage or recycling bin get picked up?
9. Does the Village trim the parkway trees?
10. How do I report a pothole?
11. Does the Village fix sidewalks that are cracked, sunken or are tripping hazards?