Can Mold Spores Travel Through Water?

by Jay | Posted on November 1st, 2022

Does mold circulate in the air? Yes, it does. Mold can spread in the air and through water, humans, and animals, much like other fungi.

Most homeowners in high-humidity locations know that mold is a problem and that any degree of water damage or flooding can allow mold to develop in walls, behind furniture, and in wet heaps of clothes. Just because it’s a bit wet in your bathroom all the time, you could have had to fight mold that was trying to develop on the grout.

Washbasin and water high quality and high resolution studio shoot

How does mold spread?

Mold spreads when airborne spores land in the air or onto hosts like people, animals, or aquatic organisms.

Mold can develop on surfaces or in construction materials and everywhere humid, dark, and warm. This combination is usually prominent when a water disaster occurs on a home or piece of property.

Is mold in water dangerous?

If remediation or removal is not done properly, mold in water can be highly harmful. Finding mold in water could negatively affect your family’s health. Both black and white mold spores can cause a wide range of health problems.

The health problems range from minor ones like nasal congestion and sneezing to more serious ones like breathing and respiratory problems, migraines, and even chronic depression.

You should get your house inspected by a mold removal specialist if you are experiencing any of these symptoms and are having problems determining what is causing them. This inspection will ensure that your home is mold-free.

Signs of mold in your tap water or water lines

Black and White Running Faucet

A sour or moldy smell when you run the water

When the water is turned on, the sour smell or faint metallic scent is typically how a household first learns mold is flowing through their fridge or tap water. By letting the water run and keeping an eye on how long the odor lasts, you might be able to establish how far the mold extends.

When you turn on the water and smell mold, it’s time to start searching for the other symptoms. You should also check your water’s safety for mold and the organic toxins the mold must be feeding on.

Mold growth on pipe and appliance fixtures

A startling quantity of mold growth on your appliance and plumbing fittings, particularly close to the valves and faucets, indicates mold dwelling inside the pipes. Mold often favors living on porous or organic materials, such as the inside of walls or cloth.

Mold growing on metal indicates that such a large amount of mold and mold food is present that it has become unconcerned with the metal’s hard, polished surface.

Mold growing throughout the home

If there is mold in your tap water, you can be sure it is present throughout your house. Tap water that supports mold contaminates everything. Be on the lookout for indicators of widespread mold development, such as bread that molds too rapidly, consistently sour laundry, or an extremely high mold spore count in the results of an air test.

A strong smell of mold when the household water tanks are opened

Check any water tanks you may have in your house. If mold develops in the water, these cold, empty tanks frequently utilized as reservoirs in the event of a water shortage or to complement a decent pump’s meager output capacity will also be filled with mold.

Mold may be present throughout your home’s plumbing and invading every other area as it gets airborne if you open these tanks and immediately detect an overpowering sense of that musty, sour smell.

Hair smells of mold after a shower

You use mold-contaminated tap water for bathing, which is one of the main issues. You don’t have a choice since you have to take a shower, and the only resource you have is tap water. If you can’t eliminate that slight sour scent, smell your hair, or have a family member do it for you. Those locks could contain small spores, like when washing is left moist.

Increasing family health problems from drinking mold-infested water

Mold poisoning is frequently accompanied by nausea, increased headaches, and difficult-to-diagnose ailments, all of which are typically brought on by breathing airborne spores. 

These symptoms might worsen and become more severe if you have been consuming water that has been contaminated with mold.

How to prevent mold in water sources in your home

You must eliminate one or more mold-promoting environmental factors to stop mold development in water sources around your house.

Mold can be prevented from spreading and taking root all about your house by keeping sinks, water bottles, swimming pools, and other fixtures free of dirt and debris.

Additionally, exposing mold to sunshine will prevent its colonization. Sunlight will enter your home throughout the day and prevent mold formation if pool and window coverings are left open.

Sometimes it’s impossible to prevent mold growth completely; therefore, in those cases, you need Mold Busters to come to your house, thoroughly examine, and remove any mold that may be present.

Frequently asked questions

Can mold grow underwater?

For mold to thrive and develop, it needs oxygen. Oxygen can be found in water. The concentration is not high enough to support mold development, though. Mold will develop on the water’s surface, where it can get enough oxygen and nutrients to survive.

How long does it take mold to spread?

It just takes a few hours for the mold to start spreading once it starts to develop. Once established, mold starts to release thousands of spores into the air, where they spread and fall on different surfaces every minute. The mold gets more places to cling to and quickly develops as it covers more surfaces.

How to prevent mold in your water?

Installing a high-quality whole-house water treatment system with a proven track record of eliminating fungal contaminants is the best approach to avoiding mold in your water.


Jay is a health and wellness enthusiast with expertise in water quality and nutrition. As a knowledgeable advocate for holistic well-being, Jay successfully manages Type 2 Diabetes through informed lifestyle choices. Committed to sharing reliable and authoritative insights, Jay combines firsthand experience with a passion for enhancing health."