Using Bleach As A Water Disinfectant Or To Shock A Well
- The procedure for “shocking” a drinking water well to disinfect it as part of well servicing, repairs, or in response to bacterial contamination, is described in detail at WELL CHLORINATION & SHOCKING
- The procedure for using bleach to disinfect water for drinking purposes, such as emergency purification of water in the field or following floods or storms, is described in detail at CHLORINE DISINFECTANT for Drinking Water.
Does Baking Soda Kill Mold And Mildew
Baking soda is mildly abrasive, so its ideal for scrubbing away the remnants of mildew and mold . It works especially well in tough spots like grout, where mildew can leave stains behind even after its killed. Make a paste out of baking soda and water and simply work it into the surface with a scrub brush or sponge.
What Do You Mix With Vinegar To Kill Mold
Pour plain, white distilled vinegar into a spray bottle. Because mold is such a resilient force, its best not to dilute the vinegar . Spray the vinegar directly onto the mold , and let it sit for at least an hour without rinsing or scrubbing so that the vinegar gets completely absorbed by the mold .
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Getting Rid Of Mold With Grapefruit Seed Extract
Grapefruit seed extract is an effective natural mold killer. It has almost no odor and you can buy it from most health food stores. The citric acid from the grapefruit attacks the mold. It also disinfects the area and deodorizes the area.
Removing Mold From Your Home

If you notice a small amount of mold growing somewhere in your home, vinegar is the best option to remove it. The vinegar will penetrate the porous surface and remove the underlying membrane as well as the mold growth on the surface. However, you should only use this method if there is a small amount of mold in your home. Attempting to remove significant mold growth yourself is ineffective and dangerous.
If the mold growth is too severe or widespread, you must call a mold remediation professional immediately. Removing small amounts of mold with vinegar is safe and effective but any substantial amount requires specialized equipment and training. Mold removal professionals will ensure all mold in your home is removed safely and effectively.
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Killing Mold And The Bleach Myth
Perhaps the most misunderstood aspect of bleach when proposed as a cleaner or sanitizing agent is that its effectiveness is greatly reduced in the presence of organic material. To be a successful sanitizer, bleach must be used on clean materials and surfaces. This is why bleach products are used in the laundry after the wash cycle or in a commercial kitchen as a component in the third sink after the dishes have been washed and rinsed. The efficacy of bleach as a sanitizer is also compromised by heat and light. Despite the fact that the chlorine odor may linger for some time after use, bleach loses strength so quickly that it is not considered to have a residual effect that would prevent future bacterial or fungal growth.
The Internet is a great source of information, but unfortunately there are still websites that recommend bleach. Main stream online publications like the Huffington Post and even the CDC recommend that bleach can be used to kill mold.
Fortunately, the Occupational Safety and Health Administration and the Environmental Protection Agency no longer recommend the use of bleach because using chlorine bleach to kill mold is one of the worst things you can do.
Why Is Bleach A Good Roof Cleaner
Bleach is a class of compounds widely used to whiten clothes and remove stains and as a disinfectant to kill germs.
Liquid household bleach has 5.25 to 8.25% of the active sodium hypochlorite ingredient. It also contains other secondary ingredients such as sodium hydroxide which is intended to keep the solution alkaline.
It is the sodium hypochlorite in bleach that denatures proteins in microorganisms that thrive on roofs. This ingredient is effective in killing algae, mildew, mold, fungi, bacteria, and viruses.
The Sodium hypochlorite becomes hypochlorous acid when it comes into contact with water. Hypochlorous acid is the active ingredient further that attacks proteins that make up the microorganisms leading to the destruction of the algea as well as other microorganisms on your roof shingles.
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How Much Bleach Is Safe For Your Roof
When using bleach, the amount you use is a key factor that will determine the results. According to ARMA a 50/50 solution of household strength sodium hypochlorite and water is sufficient to remove moss and algae. Below is a discussion from a roof cleaning expert explaining how much sodium hypochlorite is too much to damage your roof.
How To Clean Mold With Bleach
Use bleach to get rid of mold on nonporous surfaces as follows:
This method works on all nonporous surfaces including basement walls, roofs and even floors. Not drying the surface cleaned of mold will only encourage the mold to regrow. Also, throw away all the items that came into contact with the mold such as the brush and gloves.
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Bleach As A Mold Killer
Clean the wall using a phenolic- or pine-oil-based detergent or cleaner. Do not use cleaners that contain ammonia or vinegar, as bleach mixed with ammonia is toxic. Once you have removed as much of the mold as possible, clean and disinfect the wall with bleach.
In a bucket, mix the bleach solution. The bleach to water ratio for mildew is 1/4 to 1/2 cup of bleach to 1 gallon of water, advises North Dakota State University. If you werent able to fully clean the mildew with the detergent, use a higher concentration of bleach. The Federal Emergency Management Agency recommends using 1 1/4 cups of bleach to 1 gallon of water.
Use a sponge, rag or brush to clean the wall with the diluted bleach solution. You can allow the walls to dry or rinse the bleach off the wall with clean water after 10 minutes.
Does Bleach Kill Mold
Bleach does kill mold but it works best only on non-porous surfaces like tiles and tubs. Bleach is not effective against porous surfaces such as wood, drywall or concrete. Mold will spread its roots into porous materials and bleach with thus only kill the outer parts of the mold. Soon afterwards, the mold regrows even stronger than before.
A bleach mixture for mold will also kill black mold and white mold although youre better off calling for a mold expert to deal with dangerous molds such as black mold. Even during mold remediation, leave the building to avoid inhaling the airborne mold spores.
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Tips For Preventing Mold Growth
The best way to fight mold is to prevent it from growing in the first place. Keep your bathrooms, kitchen, basement, storage rooms and other areas of your home well ventilated. Humidity levels in your home should be no higher than 50 percent. Here are some things you can do to reduce the moisture and keep your home mold-free.
- Fix leaky faucets, showers or household appliances that use water
- Vent bathrooms, clothes dryers and other moisture-generating sources to the outside
- Use air conditioners and de-humidifiers
- Use exhaust fans whenever cooking, cleaning and bathing and run ventilation fans for at least 10 minutes after taking a shower or finishing cooking.
- Fix leaks in your home’s roof or walls. Clean out gutters to prevent leaking.
- Clean bathrooms and dry completely
- Remove or replace carpets in rooms like bathrooms or basements that have a lot of moisture
- Check windows for condensation and keep them clean and dry
Mold Removal With Hydrogen Peroxide

We are finding so many amazing uses for hydrogen peroxide. It kills mold as it is antifungal. It also serves as an anti-viral and antibacterial agent. Hydrogen peroxide is an excellent alternative to chlorine bleach. Not only does it effectively kill mold, but it is also safe and doesnt harm the environment. Nor does it leave behind toxic residue or produce toxic fumes like chlorine bleach does. And it is super inexpensive: you can buy a bottle in drug stores for around one dollar. Furthermore, it is effective on all porous and nonporous surfaces. However, it may make colors fade, so spot test in an inconspicuous area before using.
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How To Clean And Kill Mold With Hydrogen Peroxide
- Pour 3% concentration hydrogen peroxide into a spray bottle.
- Spray the moldy surface directly, saturating with hydrogen peroxide.
- Let sit for 10 minutes, allowing the solution to do its work.
- Then scrub the area, removing all the mold and mold stains.
- Finally, wipe the surface, removing any residual mold, and spores.
- Note: Always store the spray bottle in a dark place because light diminishes hydrogen peroxides effectiveness.
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Using Bleach To Clean To Disinfect Or To Kill Mold In Buildings
Bleaching mold in an effort to kill it, while psychologically understandable, is n ot the proper nor recommended approach to getting rid of a mold problem.
Here we explain why bleach may be satisfying, maybe even useful for cosmetic reasons, but it’s not the right approach to mold remediation.
Our photo at page top shows a moldy home after flooding in Jasper Texas. The drywall and other soft materials needed to be removed, not “sprayed with bleach”. But after all demolition and loose debris cleaning, use of a biocide as a final wash is common in this circumstance.
Our photo at left shows an area for further mold investigation in a basement: the cavity side of paneling in an area that has been damp or wet.
What about a small patch of mold on a bathroom wall or ceiling? This article explains the use of bleach on moldy surfaces.
How To Use Borax To Kill Mold
Borax is a natural cleaning product with many advantages. While it is toxic if you swallow it, it does not emit chemicals or dangerous fumes like other mold killers. To remove mold, borax needs to be combined with with water. Borax is also a natural mold inhibitor.
How to Kill Mold Using Borax
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Why Does Bleach Not Kill Mold On Porous Material
Bleach is effective in some cases, but not when it comes to porous surfaces. Not only does bleach fail to kill mold on a porous surface, but it can also make matters worse.
Porous areas have tiny openings in which the mold grows. The water component of the bleach will penetrate these pores and can increase mold growth.
At first glance, you would think that youve killed the mold, but on the contrary, youre essentially feeding it. The correct way to kill mold in porous materials such as wood and drywall is to use distilled white vinegar and hydrogen peroxide.
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When To Call A Professional Mold Remediation Company To Get Rid Of Mold
When it comes to non-toxic mold in small areas on non-porous materials there is a fair chance you can remove the mold on your own using one of the products listed above. However, professional mold remediators are recommended when:
- Mold is in your HVAC systems or inside materials and places that are difficult to repair or replace
- The mold infected area is large
- You dont have the appropriate ools or sufficient knowledge to remove the mold on your own
- You are already experiencing mold exposure symptoms
- You prefer not to waste time or nerves on mold removal
Mold remediation specialists have a lot of experience and professional equipment that will completely remove mold. These professionals know what mistakes to avoid, what not to overlook, and how to permanently solve your mold problems.
Should You Use Bleach To Kill Mold

You might be surprised to learn that many of your household cleaning products contain some level of bleach. Stain removers, toilet cleaners, and even tile residue removers all use bleach.
Bleach is very effective when it comes to killing bacteria. Unfortunately, it has adverse health issues, especially when used carelessly.
If you have a respiratory condition, you may suffer when exposed to the fumes of bleach. Some people reported feeling nauseous, having coughing fits, and a painful sting in their nose and eyes when using bleach .
Bleach is harmful on its own, but when combined with other chemicals from other cleaning products, it can become even more hazardous.
Mix With Caution
Bleach is also very bad for your pets. It can cling to your pets paws and fur. Unfortunately, when licking themselves, they will ingest the harmful chemical.
So if you have a bird or a small pet, its best not to use bleach. Even the smallest inhalation of bleach fumes can result in them becoming very sick .
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Does Not Work On Porous Materials
Bleach doesnt work well on porous materials such as drywall, carpeting and wood paneling among others. Bleachs chemical setup prevents it from soaking up into the material and killing mold from within or removing stains. Bleach can work well for non-porous surfaces because when applied, it wont seep into anything else but its intended area.
With bleach being made up of 90% water and 10% chlorine, the chlorine will evaporate leaving the water behind. This further encourages the remaining mold to regrow.
As stated by the Environmental Protection Agency , always call for a professional mold cleaner if the mold covers more 10 square feet or more. Mold remediation should help do away with the mold and mildew permanently.
Using Bleach For Cleaning Mold
Mold can be toxic, so it’s always a good idea to get a professional opinion before you remediate on your own. If you know your mold is non-toxic and it covers an area smaller than about three feet wide by three feet tall, it’s safe to clean yourself.
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How To Kill Mold With Bleach: Steps & Alternatives
Mold and mildew are not just an eyesore, they can be hazardous to your health. Bleach is a common household item that will help remove mold on surfaces in the home. Bleach has many benefits for killing mold, but it also carries risks if not used properly or with caution.
Kill mold with bleach by mixing 1 cup of bleach with 1 gallon of water and spraying the mixture to the surface with mold. After an hour, scrub and rinse the surface before drying it up. Ensure the room has enough ventilation and you have put on protective gear such as a mask, goggles and gloves.
The bleach to water ratio for mold is 1:9 from the procedure above. Basically, the bleach concentration to kill mold is 10%. This concentration wont kill mold right away and is limited to nonporous surfaces like tiles.