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Larry Hotz, Kentwood Real Estate, Greenwood Village, Colorado

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You are here: Home / Denver Real Estate News / Showerheads Grow Bacteria

Showerheads Grow Bacteria

October 31, 2009 By Larry Hotz, Kentwood Real Estate 1 Comment

(Larry: Carl Brahe is a Denver Home Inspector. He has debunked some theories about mold being dangerous on this blog before. But, now he has found a danger that seems real and one that I certainly didn’t expect. This confirms at least one other study. Thanks, Carl for your insights and contributions.)

by Carl Brahe, Certified Home Inspector, CCI

Here's how to clean a showerhead of dangerous bacteria

Here’s how to clean a showerhead of dangerous bacteria

A recent study by researchers at CU found that a biofilm accumulates inside showerheads that provides a healthy environment for bacteria to grow. The concentration can be 100 times higher in shower water than in the supply water. These bacteria are aerosolized when water begins to flow. The bacteria can be inhaled deep inside your lungs in this form. 

According to CU researchers: “We conclude that showerheads may present a significant potential exposure to aerosolized microbes, including documented opportunistic pathogens.”
Researchers at National Jewish Hospital believe that increases in pulmonary infections in the United States in recent decades from bateria like M. avium may be linked to people taking more showers and fewer baths.
Showerheads were collected from various locations across the country. The biofilm that was accumulated inside was tested for DNA to determine what microorganism existed. Non-tuberculous mycobacteria such as Mycobacterium avium (MAC), and other microorganisms were found growing in 30% of showerheads from various location in Denver, Chicago and New York City.

Wikipedia: “ MAC bacteria are common in the environment and cause infection when inhaled or swallowed. Symptoms of MAC diseases are reminiscent of tuberculosis. They include fever, fatigue, and weight loss. Many patients will have anemia and neutropenia if bone marrow is involved. Pulmonary involvement is similar to TB, while diarrhea and abdominal pain are associated with gastrointestinal involvement. MAC should always be considered in a person with HIV infection presenting with diarrhea.”

In children swollen lymph nodes in the neck are common and is usually treated with surgical removal. Other reported symptoms of pulmonary disease caused by M. avium can include fatigue, persistent cough, dry cough, shortness of breath and weakness. A general run down state may occur.

For most people, short term exposure seems to pose no risk, but the effects of long term exposure are unknown. For people with compromised immune function it can be dangerous, although researchers say that potential risks to people with compromised immune systems such as people with AIDS, flu, cancer, emphysema or other health problems, must be studied further. Pregnant women and children have a higher risk of developing health problems related to N on-tuberculous mycobacteria.

Aaron E. Glatt, MD, a spokesman for the Infectious Diseases Society of America , says: “Mycobacterium avium, and the other non-tuberculous mycobacteria, are ubiquitous.For healthy people, they don’t represent a significant pathogen.” For the immunocompromised they are more of a concern.

Earlier studies indicate that these organisms grow better in chlorinated water than in untreated well water. The microbes appear to be chlorine resistant and cleaning with chlorine bleach actually increases growth.

Anti-bacterial cleaners also appear to antagonize the problem. A study found that in spite of antibacterial cleaners now being common household items the spread of disease is not appreciably reduced. In fact, there are now issues of bacterial resistance to contend with. These cleaners are not recommended.

Dismantling and soaking the parts in hot, white vinegar may be effective in cleaning metal showerheads. Heat the vinegar in a pan on the stove. Do not boil. Do not soak rubber parts. Soak parts for 20 minutes then wash and rinse thoroughly before reassembling.

Researchers recommend replacing showerheads every six months, or when mineral build-up begins to collect. Metal showerheads are preferred. Plastic appears to accumulate biofilm quicker than metal. If you are concerned about possible dangers to your health, take baths instead of showers.

For many more resources for property owners/buyers/sellers and professionals go to: www.inspection-perfection.com

Inspection Perfection, Inc – 303-816-5556
info@inspection-perfection.com

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Filed Under: Denver Real Estate News Tagged With: Denver, Denver Home Inpsection, Shower Head Bacteria, University of Colorado

About Larry Hotz, Kentwood Real Estate

Larry Hotz is the team coordinator at All Denver Real Estate. He is also an active real estate broker at The Kentwood Company in Greenwood Village, Colorado. He lives in the Heritage Hills neighborhood of Lone Tree, a Denver suburb. He is an active member of the Metro Denver Association of Realtors and Metrolist, the local MLS.

Comments

  1. International Property Listing says

    January 10, 2010 at 8:14 am

    Oh is this for real? Thanks for sharing this! We should now start cleaning showerheads in our bathrooms to be safe. I’ll tell my friends everything about this!

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Copyright 2000-2021 by Loren Hotz. All Rights Reserved. Loren (Larry) is a Broker Associate of The Hotz Group at Kentwood Real Estate. Some articles on this real estate blog were written by Brokers employed by various brokerages including Kentwood Real Estate as identified. Unless otherwise identified, luxury Denver real estate market statistics were provide by the Denver MLS search company, ReColorado.