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Water Quality Problem

Why Is My Tap Water Brown, Yellow, or Discolored?

Brown, yellow, or cloudy water from your tap can have several possible causes — from sediment and changes in the water supply to corrosion in older household plumbing. A water test and inspection help identify the source so you can address it correctly.

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Cloudy WaterYellow WaterBrown WaterRust-Colored Water

What Is This Water Problem?

Discolored tap water is water that looks brown, yellow, orange, cloudy, or rusty when it comes out of the faucet. It is a visible change from clear, colorless water and is one of the most common reasons homeowners request a water test. Discoloration can appear in both hot and cold water, may come and go, or may be constant depending on the cause.

What Can Cause It

This problem can have more than one possible cause — from the water supply to household plumbing to a water heater. Identifying the cause is the right first step, because the solution depends on what is actually happening.

  • Sediment or minerals stirred up by utility maintenance or changes in water pressure
  • Iron or manganese naturally present in well water or the local supply
  • Corrosion inside older galvanized or iron household plumbing
  • A disturbance in the municipal water main flushing rust and scale into your lines
  • A failing or aging water heater releasing rust and sediment into the hot water

Common Signs to Look For

Is It a Health or Plumbing Concern?

Discolored water is a quality concern worth investigating, but it is not automatically a health emergency. Some causes — like utility flushing — may clear on their own. Others, like corrosion in your home's plumbing, can worsen over time and damage fixtures and appliances. A water test identifies what is actually in your water so you can decide on the right next step rather than guessing.

How to Identify the Cause

  1. 1Run cold water in a clean glass — if it clears after a few minutes, the cause may be disturbance in the supply line
  2. 2Check whether the discoloration appears only in hot water — that can point to the water heater
  3. 3Ask neighbors if they are seeing the same issue — shared discoloration suggests a supply cause
  4. 4Contact your water utility for any recent advisories or maintenance in your area
  5. 5Schedule a water test to measure iron, manganese, sediment, and other conditions at your tap

How the Problem Can Be Addressed

Not every water problem is solved the same way. The right option depends on what testing finds in your water. Here are solutions that may apply — a water test tells you which one actually fits your conditions.

What filtration cannot do:
  • Fix every plumbing cause, like corroded pipes or a failing water heater
  • Diagnose health symptoms or guarantee any cosmetic result

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Frequently Asked Questions

Find Out What's Going On With Your Water

Every home's water is different. Generation H2O can help you understand your water conditions and explore solutions based on your test results — with no obligation.

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Common Water Quality Problems

Explore more water-quality issues and the testing and treatment options for each.

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