Knowledge Base

What is a Hydrant Flusher?

Hydrant Flushing

Overview

 Hydrant flushers automatically initiate flushing and help utilities comply with U.S. EPA Drinking Water Standards. Customers may occasionally observe what appears to be a leak from the hydrant; however, it is often part of a routine flushing process.

Reasons for Flushing

A fire hydrant functions essentially as a valve, and to ensure proper operation when needed, it is important to regularly inspect and test the hydrant.

Hydrants are flushed to remove mineral deposits that may accumulate inside water distribution pipes.

There are several different automatic flushing device configurations throughout our water service area, so the appearance of the equipment may vary depending on the location (see example below).  In some locations, such as dead-end water mains, you may see a standalone green flushing device that is connected directly to the water main instead of a fire hydrant.

Automatic flushing typically occurs overnight between 9:00 p.m. and 5:00 a.m., when water demand is lower.

 

For Additional Assistance:

City of Georgetown Utilities - Customer Care
customercare@georgetowntexas.gov
512-930-3640


Updated 7/24/2026 12:07 PM
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