What is the black stuff coming out of my water filter?

Author: Abagail King  |  Last update: Monday, February 16, 2026

Whether it's a stand-alone carbon filter or the carbon prefilter in a reverse osmosis system, most release carbon dust when they're first activated. If you have a new filter or just changed the cartridge in an existing filter, seeing black particles is unappetizing but not unusual.

Why is there black stuff coming out of my water filter?

The black substance that can come out of water filters is typically activated carbon or carbon dust. Activated carbon is commonly used in water filtration systems due to its ability to adsorb impurities, chemicals, and odors from water.

What are the black bits coming out of my filter?

Those tiny fragments are simply granules of the activated carbon that fill the filter cartridge. They can appear when the cartridge is being activated and, occasionally, after prolonged use of the filter jug with the same filter: put simply, tiny fragments of activated carbon leak out of the filter.

Is it safe to drink carbon from a water filter?

Drinking water that contains carbon dust from filters, such as activated carbon, is generally not harmful in small amounts. Activated carbon is commonly used in water filtration systems to remove impurities, odors, and tastes. However, there are a few considerations to keep in mind:

What is the black stuff coming out of my water dispenser?

It's mold. It's always damp inside the dispenser valve and if you don't use it often enough this happens. The same thing happens to my kitchen sink water dispenser. Water sits at the the top of the curve. Once a year I take it apart and soak it in soap/chlorox and clean the inside with pipe cleaners.

My Tap Drinking Water is Black - Reason Why ??

What is the black stuff coming out water?

Are there black particles in your water? The most common cause of black particles in tap water is the disintegration of rubber materials used in plumbing fixtures. These particles float and often adhere to sinks and bathtubs and can appear sooty or greasy.

What is the black stuff in my water filter jug?

- Seeing carbon particles in the pitcher or dispenser after several weeks of use is normal.

What is the black stuff in my tap filter?

Rarely, iron and manganese show up as black particles. But more often than not, they present as black or brown slime. If you have a carbon filter, chances are that what you're seeing is carbon dust.

What are the side effects of filtered water?

Although filters can be helpful in removing harmful chemicals from our water, they sometimes strip away beneficial minerals too. These include magnesium and calcium, as well as iron and manganese, which are eliminated to make water softer and prevent discolouration, respectively.

What is the black powder in my Brita filter?

What are the black particles in my water after filtering? It's just activated carbon from the BRITA water filter.

What are the black floaties in my water filter?

If the particles are small black flecks they are most likely from filters that you have hooked up to your house that uses carbon filters to remove contaminants. If you do have filters and determine that this is the cause, you should change or flush your filters per your suggested manufacturer guidelines.

Can you drink water right after changing the filter?

As long as you have followed the proper instructions to flush your new water filter with three gallons of water, you can usually drink the water right after you've finished the replacement. Check the instructions for your filter to make sure.

Is it safe to drink water with black specks?

These particles usually aren't harmful to drink but can cause wear and tear on your appliances. A professional plumber can offer recommendations for filtering the water from the well to remove the sediment.

What does mold in a water filter look like?

Visible mold: Black, green, or white specks in your water filter are surefire signs of mold. Regular filter maintenance frequency is key to preventing this. Humidity issues: If your house is particularly humid, your water filter is more prone to mold growth.

What is the black gunk in my Brita filter?

What are the black specks in the reservoir of my Brita® pitcher? Seeing carbon particles in the pitcher after several weeks of use is normal with our older filters.

What is the healthiest water to drink?

Alkaline water may be one of the healthiest waters to consume. The pH level of regular drinking water is a neutral 7. Alkaline water has a pH level of 8 to 9.5. It contains properties that may even protect your body from free radicals, which are often linked to inflammation and many chronic diseases.

What happens if you drink water from a dirty filter?

Possible Risks of Drinking Dirty Water

You and your family experience gastrointestinal problems, including diarrhea, nausea, and stomach cramping. Your water has an off taste, which makes the food you prepare with it taste different than it should.

Is filtered water good for kidneys?

While drinking water is essential to maintain healthy kidneys, drinking filtered water can provide even more benefits for a long-lasting health.

Why is black stuff coming out of my water filter?

This is fine carbon particles left over from the manufacturing process. Flushing the system as outlined in the install instructions will eliminate this situation. It is recommended that 2 to 3 gallons be flushed through the filters (approx 5 min.).

What is the black slime in my water?

Sometimes a black tint in the water may be caused by oxidising pipes or the dissolving of rubber seals in your water system. The main and most prevalent cause of this however is manganese. The black slime is oxidised manganese and the bacteria that feed off of it.

Why are there black bits coming out of my tap?

Rust or other metallic pieces can break off from the interior of the pipes and be sent up through your taps. This will likely occur only for cold water taps and is more prevalent after a period of rest for your pipes. You may need pipe repair or replacement, depending on the level of damage.

Is carbon dust from water filters harmful?

Is Carbon Dust Safe to Drink? Although the black dust floating in your water might look unappealing, it's not considered harmful.

How to remove mold from a water filter?

Soak all parts of the filter in a solution of bleach and hot water for at least 10 minutes. Rinse the filter parts thoroughly with hot water to remove any residue from the bleach solution. Allow all of the parts to air-dry completely and reassemble them according to their instructions.

What is the black gunk in my water dispenser?

Mold Growth: Dark, damp places in the dispenser can grow mold. Black specks in tap water can sometimes appear due to deteriorating rubber seals in plumbing or even from sediment buildup, which can be concerning if noticed in your drinking or shower water.

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