Suffolk County Water Authority

 
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Color or Staining

Brown, rusty, blue, or pink water
air

Taste or Odor

Sulfur, earthy, or chlorine smell
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Cloudy or Particles

Milky water or white/black particles
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Health or Chemical

Sickness, petroleum, or chemical smell
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warning Immediate Attention Required

Reports of illness, petroleum, or strong chemical odors require an immediate dispatch. Please do not use an online form.

call Call (631) 698-9500 Now

hourglass_bottom The Settling Test

Milky or cloudy water is almost always caused by harmless trapped air. Changes in temperature or pressure in the main create micro-bubbles that make the water look white.

  • Fill a clear glass with water.
  • Place it on the counter and watch it for 2 minutes.

If it clears from the bottom upward: It is just trapped air. It is entirely safe to drink and will resolve naturally as temperatures stabilize.

If it does not clear, or has physical particles: Proceed to the next step to flush your service line.

water_heater The Isolation Test

Before we flush the system, we need to verify where the color is coming from. SCWA only supplies cold water to your property.

  • Turn on only the hot water. Is it discolored?
  • Turn off the hot, and turn on only the cold water. Is it discolored?

If only the hot water is discolored: The issue is inside your water heater (often sediment buildup). You will need to contact a plumber to flush your water heater tank.

If the cold water is discolored: Proceed to the next step to flush your service line.

Flush Your Service Line

Go to faucet without a screen or aerator (such as a bathtub or outdoor spigot) and run the cold water only on full blast.

Time Remaining
05:00

Did flushing resolve the issue?

Turn off the faucet and check a glass of cold water.

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Excellent!

Your service line has been cleared. SCWA performs routine flushing of water mains, and occasionally natural sediment can enter a service line. Running your cold water flushes it safely out.