How often should you run an unused shower?

Author: Reece Corwin  |  Last update: Sunday, March 8, 2026

It is advisable to run any infrequently used showers or taps for about two minutes each week or until the hot and cold water are the same temperature as frequently used outlets.

How often should you run water in an unused shower?

Try to run it once a week. It helps prevent microbial pockets from growing in quiet spots in the water lines and valves. An incident in a hotel where an occupant of a room that won't used in a long time, took a hot shower, developed Legionella infection, was hospitalized, and died.

How long should you run a shower that hasn't been used?

When you first move into your home, run the bath and hand basin taps continuously for at least five minutes. This will flush through any bacteria. If your shower has not been used for a week or more, run water from both hot and cold supplies through the shower hose and showerhead for two minutes.

Is it bad to leave a shower unused?

Risks of leaving a shower unused over time

If a shower is not used over a long period of time, this results in the formation of germs that can be harmful to health. Water stagnating in the pipes provides the ideal breeding ground for different kinds of bacteria.

How often should you shower if you don't do anything?

While there is no strict rule on how often one should shower (as it can vary based on personal preference, cultural norms, and lifestyle), it's generally recommended to shower at least every 2--3 days to maintain good hygiene and minimize potential health risks associated with accumulated dirt and bacteria.

How Often Do You Really Need to Shower?

How many days is OK without a shower?

Showering daily is not necessarily "unhealthy," but you may not need to. For many people, a full-body shower every other day or even every third day is enough. That said, just because you don't shower daily does not mean you want to skip out on personal care.

Should you shower in the morning or at night?

Across a range of specialties, healthcare providers agreed that, in general, you can shower whenever you want. “There is no scientific literature that says you need to shower in the morning or at night,” Thomas Russo, MD, professor and chief of infectious disease at the University at Buffalo, told Health.

Do pipes go bad if not used?

Your plumbing pipes and plumbing fixtures will survive when you're away from home. The bigger concern is making sure everything is cleaned out thoroughly if it's been unused for months. If your plumbing has not been used for some time, the first step is to always flush out the pipes.

What are the symptoms of showerhead sickness?

NTM Symptoms
  • Chronic or recurring cough.
  • Fever.
  • Weight loss.
  • Lack of appetite.
  • Night sweats.
  • Loss of energy.

How often should an inactive person shower?

It Doesn't Have To Be Everyday

Therefore, it's okay for the elderly to just bathe once or twice a week. If you are caring for a loved one and they are struggling to shower themselves, you may have to step in to provide them with the help they need.

Can you get legionnaires from an unused shower?

Certain scenarios or processes involving water may allow the bacteria to grow and multiply throughout a plumbing system. For example, a shower that is not often used will be more likely to contain stagnant water, perhaps in the shower head and perhaps in the pipework that leads to it.

What are the first signs of Legionnaires' disease?

Legionnaires' disease, the pneumonic form, has an incubation period of 2 to 10 days (but up to 16 days has been recorded in some outbreaks). Initially, symptoms are fever, loss of appetite, headache, malaise and lethargy. Some patients may also have muscle pain, diarrhoea and confusion.

What happens when a shower isn't used?

Legionella bacteria can build up in any shower, tap, or water outlet that is not used regularly as the water in the system remains stagnant. When turned on, bacteria will flow out of the system with water, and whoever is using the shower will breathe in aerosols containing Legionella bacteria.

How long to run water after being away?

Daily Cleaning: If no one has used water for six hours or more, run your COLD tap for at least 3 minutes. It gets rid of water that has been sitting in your pipes. Do this BEFORE using cold water for drinking, cooking, making baby formula, feeding your pets, making ice, or watering edible plants.

Do long showers increase water bill?

It's easy to underestimate how much water you use daily, but small habits can add up. Factors contributing to high water usage may include: Long Showers: Spending extra minutes under a warm shower might be relaxing, but it can also substantially increase your water bill.

How often should I run an unused shower?

Here are some things to do if you have a bathroom that does not get used that often: The main thing is to run water in the sink, shower and flush the toilet at least once a week. This will keep the traps full. A trap that has evaporated will let sewer gas into your home causing odor.

Do you flush the toilet every time?

In short, it's up to each household – if you've just had a wee then there's no real need to flush every time if the lid is kept down, says Russell.

How often do you need to clean glass pipes?

Experts recommend regular users to clean their pipes once weekly, or at least when they start to notice resin buildup. The most popular method is to fill the pipe with coarse salt and isopropyl alcohol, plug up the holes with your fingers, and give it a good shake to dislodge stuck resin and particles.

Do pipes burst if not used?

Pipes typically burst when exposed to extremely low temperatures for an extended period of time (anywhere from 1-3 days depending on temperature). This is especially true for pipes located on exterior walls. A frozen pipe is likely to burst when any water or liquid trapped within it freezes and begins to expand.

How long can water sit in pipes?

Stagnant water left in unused plumbing is a breeding ground for bacteria and contaminants like lead. Water quality issues can develop within just a few days at individual faucets.

How long does it take for water pipes to corrode?

In general, copper pipes can last for several decades before showing signs of corrosion. However, if the water chemistry is highly acidic or if the pipes are exposed to harsh chemicals or extreme temperatures, the rate of corrosion can increase significantly. In these cases, copper pipes may corrode within a few years.

Why should you always shower before going to bed?

Benefits of Showering Before Bed

When incorporated into a bedtime routine, a nighttime shower may help send your brain the signal that it is time to sleep. Showering at night also ensures you will be cleaner when you go to bed, reducing the buildup of sweat, dirt, and body oils on your bedding.

How long should a shower take for a woman?

Most dermatologists say that your shower should last between five and 10 minutes to cleanse and hydrate your skin, but no longer than 15 minutes to avoid drying it out. You can still benefit from the shower length you prefer, whether long and luxurious, quick and efficient or somewhere in the middle.

Are cold showers good for you?

Running out of hot water during your shower might actually be a good thing. A cold shower — even just for a few minutes — can work as cold therapy to help you heal, recover and generally feel good, especially after exercise.

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