Brown Water From the Faucet: Causes and When to Worry

What are the 4 causes of brown water from the faucet?

The 4 causes of brown water from the faucet are listed below.

• Rust breaks loose inside old galvanized steel pipe.
• A water main break or hydrant flushing stirs up sediment.
• A rusting water heater tank colors the hot water only.
• Iron in well water stains the water orange or brown.

Is brown water from the faucet safe to drink?

No, brown water from the faucet is not safe to drink until the cause is known and the water runs clear.

What should you do when the faucet runs brown?

The 4 things you should do when the faucet runs brown are listed below.

1. Check whether the hot, the cold or both run brown.
2. Run the cold water for a few minutes.
3. Ask the water utility about main work or flushing.
4. Call a plumber when the water stays brown.

When should you call a plumber?

You should call a plumber in the 4 situations below.

• Brown water comes from the hot tap only.
• The water stays brown after flushing.
• The house has galvanized pipe.
• The water pressure is low with the brown water.

Related plumbing problems and next steps

How much does the plumbing repair cost?

The plumbing repair cost depends on the cause: repiping costs $372–$2,131 for most jobs, according to HomeAdvisor. Repiping prices and local plumbers are on the repiping service in Lancaster, PA page.

What is a related plumbing problem?

A related plumbing problem is hard water lancaster pa, and the hard water lancaster pa guide lists its causes and first steps.

Written and fact-checked by the Lancaster PA Plumbers editorial team using HomeAdvisor, EPA WaterSense and City of Lancaster data. Last updated October 29, 2026.