Seeing discolored water from tap fixtures can be alarming. Clean drinking water should always appear clear, so when it turns green, red, brown, or cloudy, it is a sign that something may be wrong within your plumbing system. While some causes are relatively minor, others can indicate aging pipes or corrosion that requires professional attention.
Understanding the most common reasons for water discoloration can help you determine the next steps.
Copper Pipe Corrosion and Green or Blue Water
If your tap water appears green or blue, copper pipes may be the cause. Over time, copper plumbing can corrode, especially if water chemistry causes gradual wear inside the pipes.
When corrosion occurs, small amounts of copper can enter the water supply, creating a blue-green tint. You may also notice green staining around sinks, tubs, or drains.
Although copper is commonly used in plumbing systems, elevated levels can cause stomach discomfort if consumed in large amounts. If you notice persistent blue or green discoloration, it is important to have your plumbing system inspected to prevent further pipe deterioration.
Iron and Rust Causing Red or Brown Water
Red, yellow, or brown water is often linked to iron in the plumbing system. This may be due to iron bacteria in the water supply or corrosion inside older iron or steel pipes.
While iron itself is not typically dangerous at low levels, it can stain clothing, sinks, and fixtures. It may also give water a metallic taste that affects cooking and drinking.
In many cases, rusty water is a sign of aging pipes. Galvanized steel pipes, which were once common in residential plumbing, are particularly susceptible to corrosion over time. As the protective zinc coating inside these pipes wears away, the exposed iron begins to rust and contaminate the water.
If discoloration persists, pipe replacement may be necessary to restore water clarity and protect your plumbing system.
Cloudy or Milky Water and Air in the Lines
Sometimes water may appear cloudy or milky rather than tinted with color. In many cases, this is caused by tiny air bubbles trapped in the water supply.
If the cloudiness clears from the bottom of the glass upward after a few moments, air is likely the cause. While this issue is usually harmless, consistent cloudiness may also indicate pressure changes or potential issues within the plumbing system.
If cloudy water does not clear or is accompanied by unusual odors, professional evaluation is recommended.
When Discolored Water Requires Immediate Attention
While some causes of discolored water are minor, others can indicate more serious plumbing issues such as:
- Advanced pipe corrosion
- Failing galvanized plumbing
- Sediment buildup in a water heater
- Municipal water supply disturbances
If discoloration is sudden, persistent, or accompanied by unusual taste or odor, it is best to have the system professionally inspected.
At Metro Plumbing, Heating and Air, our experienced team provides thorough plumbing evaluations to identify the source of discolored water and recommend long-term solutions. Whether the issue involves pipe replacement, water heater maintenance, or water quality improvements, our professional plumbing services help restore clean, clear water to your home.
Schedule a Plumbing Inspection for Discolored Water
Discolored water from tap fixtures should never be ignored. Even if the issue appears minor, early inspection can prevent costly repairs and protect your household’s water quality.
Call (423) 855-0967 to speak with our team, email info@metropha.com
, or Contact Us online to schedule service.
Metro Plumbing, Heating and Air is committed to helping homeowners maintain safe, reliable plumbing systems and clear, healthy water.