Why does my water smell stale?

Author: Amir Abshire  |  Last update: Friday, May 16, 2025

The most common reason for the odor is stagnant water in your plumbing system, particularly within the hot water heater. The best way to eliminate the odor is to purge your plumbing system by completely emptying your hot water heater.

How do you get rid of the smell of stale water?

Earthy or musty
  1. If your property has been empty for a while, run your cold taps for around five minutes. ...
  2. Use your water on a regular basis.
  3. Put insulation on pipes to prevent the hot water pipes from warming the cold water pipes.
  4. Use a chlorine-based cleaner to remove fungal growth and slime.

Is it safe to drink musty smelling water?

Water that has a musty smell is generally safe to use. However, to be cautious, the easiest way to rectify the problem is to employ a water dispenser with filtration capabilities.

How do you get the musty smell out of water?

Pour 1/2 cup of baking soda and at least 1 cup of white vinegar down the drain. Let sit for about 15 minutes then chase with hot water. I do this every few weeks as part of a maintenance routine and it does get rid of that funky odor.

How do I fix smelly tap water?

Disinfecting, cleaning and flushing the drain should eliminate the odor. The reservoir/pressure tank may also be the source of such an odor. Cleaning and maintaining the reservoir/ pressure tank periodically can prevent bacteria from growing to levels that cause odor in the water.

Why Does My Water Smell Musty and What Should I Do?

Why does my tap water smell stagnant?

This smell or taste is probably coming from stale air trapped in the waste and overflow of your sink. Pipes for sewage and waste are completely different and separate to those bringing you drinking water.

How long does it take for smelly water to go away?

Turn all faucets inside and outside the home fully open. Let the water run for 10 minutes, then turn off the water. This will flush out all the pipes in the home.

Why does my water smell bad from only one faucet?

An odor in one faucet in the house can usually be remedied by flushing the offending faucet. Other possible causes are: Water softener (if applicable) malfunctioning or in need of service. Bacterial growth in a drain, or a dried out drain.

Why does my tap water smell like mildew?

Why Does My Tap Water Smell Moldy, Musty, Earthy or Fishy? Moldy, musty, or fishy odors in your water or drain are typically the result of bacterial activity and frequently affect those on private well systems. (Mold in your drain can be an issue as well, but more on drains next.)

How to remove smell from water tank naturally?

Begin by draining your water tank, then scrub away any visible contaminants. Add a mixture of baking soda and vinegar for a natural cleanse. Regularly implementing these simple steps will keep your water tank smelling as fresh as a desert breeze.

Why does tap water go stale?

Environmental Contaminants

Exposed water can collect dust, bacteria, and other particles from the environment. While these are often present in small amounts and may not pose a serious health risk, they can alter the flavour and perceived freshness of the water.

Does a musty smell mean there is water damage?

For mild mold growth, you can remove the mold using different methods. For large mold outbreaks, a professional mold remediation company can find the source of the mold issue, remove it, and help prevent future mold issues. Musty Smells: A musty odor smell is a key sign of water damage.

Can I shower in smelly water?

In conclusion, water that smells like sulfur is generally safe to shower in, but it can be unappealing. If you're concerned about the smell, you may want to contact your local water utility or a plumber to have your water tested. They can help determine the cause of the smell and provide solutions to address it.

What is the treatment for smelly water?

Chlorination can kill sulfur bacteria. If all bacteria are not destroyed by chlorination, the problem may return within a few weeks. Increase the water heater temperature to 160 degrees Fahrenheit (71 degrees Celsius) for several hours. This will destroy the sulfur bacteria.

How do you freshen water?

Boil water, if you do not have bottled water. Boiling is sufficient to kill pathogenic bacteria, viruses and protozoa (WHO, 2015). If water is cloudy, let it settle and filter it through a clean cloth, paperboiling water towel, or coffee filter. Bring water to a rolling boil for at least one minute.

How do you get rid of stale smell?

How to get rid of musty smells in your home
  1. Regular ventilation. Ventilation can remove the musty air that causes a buildup of bad odours. ...
  2. Use an air purifier. ...
  3. Air fresheners. ...
  4. Baking soda. ...
  5. Eliminate moisture and keep the house dry.

How to get rid of stale water smell?

Vinegar: Put white vinegar in bowls and place the bowls throughout the room. The vinegar will remove the odor within a couple of days. Cat Litter: Put clean cat litter in small, open containers and place the containers around the room. Make sure you change the cat litter for better deodorization.

Why does my water smell bad all of a sudden?

Bacteria growing in the water heater can also produce a rotten eggs or sewage-like smell. Frequently, this occurs if the hot water is unused, if the water heater is turned off for a long period of time, or if the thermostat on the heater is set too low.

How do I know if my tap water is moldy?

What are the Signs Your Water Has Mold?
  1. You smell mold when you run your water.
  2. You see buildup on the sides of your shower.
  3. You notice dirt-like substance at the bottom and sides of your toilet.
  4. Mold is growing in other locations around your home.

Why does my house smell like stagnant water?

The most common reason for the odor is stagnant water in your plumbing system, particularly within the hot water heater. The best way to eliminate the odor is to purge your plumbing system by completely emptying your hot water heater.

Is smelly tap water safe?

Tap water that smells or tastes of chlorine is not usually a cause for concern. Tap water is disinfected with chlorine to make it clean and safe to drink, so the smell is likely left from the treatment process. If the smell or taste of chlorine is very strong, however, it's best to contact your local health agency.

Why does my water smell like musty?

Algae, bacteria and other organic matter can make their way into the water supply and cause a strange odour, but they are typically not harmful. Similarly, a build-up of naturally-occurring metals – like iron and copper – can produce an undesirable smell but these are equally non-threatening in low quantities.

Can a plumber fix smelly water?

Musty, Moldy Or Fishy Water Smell

If it doesn't have an odor, disinfect your drain to get rid of the smell. If the water does smell, there could be bacteria present in your well or water heater tank. Contact a professional plumber on our team to help you remove the bacteria.

What takes the smell out of water?

Chlorine is the most widely used oxidant to remove odor from water, but at best deemed mildly effective. Oxygen and potassium permanganate are also only mildly effective water treatment solutions.

Will bleach get rid of sulfur smell in well water?

The chlorine in the bleach chemically reacts with (oxi- dizes) the hydrogen sulfide eliminating the "rotten egg" odor. Chlorine bleach also reacts with iron or manganese, and disinfects water supplies.

Previous article
Why is my toilet slowly leaking from the bottom?
Next article
What is the best urine remover for hardwood floors?