Hot water and cold water switched in shower


A friend of mine is 45 years old, has no gray hair, and very good skin for her age. I wanted to find out if there was anything in her routine that could have been a reason for such youthful looks for her age (all without any surgery by the way!). Leaving genetics out of the equation for a moment, the one interesting thing that popped up was the fact that she takes a cold shower every morning. So I did a little research about the subject and found 4 main benefits that you gain by taking cold showers.

Now when I say cold shower, I want to clarify exactly what I mean by that. Taking a full cold shower, meaning no hot or warm or lukewarm water at all, is borderline torture! Especially in the cold winter months (I am from Montreal, and it is VERY cold here!). Besides, there are many benefits to taking a warm shower, the primary one being that it feels really good! But seriously, what I mean in this context, is the practice of starting with a warm shower, and ending the last...

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You probably see cold showers as dreadful things that you’ve never put yourself through of your own free will; rather, they’re forced on you by circumstances beyond your control. The jerks in your dorm or apartment used up all the hot water or some inconsiderate person may have flushed the toilet before you were finished bathing. Ticked off and uncomfortable, you become irate at these people for making you have to endure this terrible thing… but what if I told you that you should thank them instead? If a person makes your shower go from hot to cold, they are doing a solid favor for your health and waistline. I invite you to consider five surprising benefits of cold showers!

There is nothing special about hot showers

Before we get into the actual benefits of cold showers, let’s establish the simple fact that hot showers are a luxury and not a necessity. Throughout most of human history, people had to bathe in whatever water was available to them. If you’ve ever swum...

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As a kid, I was a big James Bond fan. Saw all the movies and read all the books. One thing I noticed about the book version of James Bond was that every time he took a shower, he would start off with the water nice and hot, and then turn it down to cold for the last few minutes. Perhaps this little detail of Bond’s personal bathing regimen was a subtle way for Ian Fleming to illustrate Bond’s Scottish ancestry, as this type of shower is commonly known as a “Scottish Shower.” Who knows.

Being an impressionable kid, I started doing it too. I didn’t know the proper name for this type of shower, so I just called it the “James Bond Shower.” Taking a shower that started hot and ended cold proved to be quite invigorating. It woke me up and added a bit of pep to my step throughout the day. I’ve continued the practice of the James Bond Shower into adulthood. Along the way, I’ve discovered that cold water baths have been used for centuries as a way to treat various ailments...

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by Chris Woodford. Last updated: September 15, 2016.

Are you a shower person or a bath person? Do you like to feel pulsing jets of water blasting your dirty skin clean? Or do you prefer to laze luxuriously in the tub until the water turns cold? If you wash for less than five minutes and your shower has a modern, low-flow head, you'll save over 50 gallons of water and a huge amount of energy compared to taking a full bath. Saving hot water with a shower helps to cut your energy bills and it's a simple thing you can do to fight global warming. Sounds good? Let's take a closer look at how showers work!

Photo: A simple Mira electric shower. There are two controls for adjusting the temperature. The upper dial sets the temperature broadly as high, medium, or low. Once you've set the temperature roughly, the lower dial lets you fine tune to get the water exactly as hot as you want it.

How do mixer showers work?

The simplest showers are called mixer...

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Most of us have been caught in that skin-cringing, and often dreaded moment of being the last one to shower. If you haven't then chances are that you've had someone walk into the bathroom, and flush the toilet mid-shower, leaving you covered in bone-chilling cold water. In these moments, instead of indulging in a hot luxurious shower, especially during the bitter cold winter months, we find ourselves shivering with discomfort and anger, but this may actually be advantageous to our health. Coined as the “James Bond Shower,” or often referred to as a “Scottish Shower,” turning the temperature down to freezing cold at the end can provide surprising benefits for our body and skin.

1. Increases Alertness

Taking a cold shower in the morning, and feeling cold water pour down over our body seems more horrifying than soothing. However, the deep breathing in response to our body’s shock helps us keep warm, as it’s increases our overall oxygen intake. Thus, our...

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I guess most people prefer hot shower, especially during winter. As I am staying in a country with equatorial climate, I quite like cold shower in hot days. Some people have been saying that cold water is better whereas some prefer hot shower. Actually, you can have hot and cold shower in one session. I will talk about that later.

First of all, we need to define what exactly is cold and hot shower. If the water temperature is between 50 degrees and 70 degrees Fahrenheit (10 degrees to 21 degree Celsius), it is cold shower. If the water temperature is more than 96 degrees (35 degree Celsius), it is considered hot shower. Now, let’s look at when you should consider taking hot shower:

When To Take Hot Shower?
Hot shower can be used to relieve cold symptoms. The hot steam works like a natural decongestant. It moisturizes your nasal passages as well. So, if you have a blocked nose next time, you know what to do.
If you are having stiff neck...

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This is a guest post, by Lisa Jarman.

Many experts and fitness professionals swear by a cold shower or ice bath (of between 10-15 Celsius/50-59 Fahrenheit) following a workout. While plunging into icy water straight after getting all hot and sweaty in the gym might be a shock to the system, the argument is that it cools the body down quickly and evenly. The drop in temperature then directs blood flow towards the vital organs; leaving the muscles alone to repair themselves and release any accumulated lactic acid. This is where the vasoconstriction comes in, as the cold water also narrows the blood vessels and lowers the temperature of damaged tissue. The result is that cold showers can help prevent bruising and swelling from waste and fluid build-up; same as applying an ice pack locally after an injury. It’s also been said that cold water showers can help increase immunity and circulation. Not to mention, they’ll sure help you shake off any post-workout slump. After all,...

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A shower should be counted on to be good and hot when you need it to be. But keep in mind that the hot water coming from a shower is coming from your hot water heater tank. The water has to start out hot there to supply you with hot water at the showerhead. Although the hot water heater is where you begin to find out why your shower water isn't getting hot, there may be other causes that limit or deny you a hot shower when you want it.

Water Heater

Make sure the water heater temperature is set correctly. If the water in the shower never gets hot, the problem may be with the temperature control on the water heater. If you have an electric water heater, one of the elements may have burned out and the water either gets hot for only a short length of time, or it never gets hot at all. On older water heaters, the cold water supply dip tube may have deteriorated. Instead of the incoming cold water going straight to the burner for heating, a compromised dip tube may send...

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A sudden burst of piping hot (or freezing cold) water is a showering human's worst nightmare. But what's the cause? And how can you prevent it? The DIY experts at Stack Exchange provide a few tips.

When the shower is running and someone flushes a toilet, why does the shower get cold (or sometimes hot) in some houses, but not others? More importantly, would fixing that require replacing the water heater, or re-doing the piping in the entire house? Or is there some cheap/easy way to fix it?

See the original question.

Tester101 answers:

Why You Get Burned

One of the most common plumbing configurations is a trunk and branch system. This is where a larger diameter pipe runs from one end of the building to the other, and smaller diameter pipes branch off to supply rooms or individual fixtures. If any of the branches demand water (you flush the toilet), there is less water available to all the other branches. Since the toilet only uses cold water,...

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The choice between hot water bath or cold water bath can make or break your health. The choice between these to is subjective. The choice needs to be made considering various points such as age, body constitution, season, the age-old practice, habit, disease condition etc. Here is a description about how to make that choice.

How to choose between hot and cold water for bath?

what Ayurveda says?

As a general rule, Ayurveda advises to use hot water for the body and cold water bath for head. Ayurveda opines that having hot water head bath is bad for eyes and hair.

Based on Body type –
If you are of Pitta body type, then it is better to use cold water for bath rather than hot water.
If you are of Kapha or Vata body type, then it is better to use hot water rather.

Based on disease –
For patients with Pitta diseases such as liver disorders, indigestion,burning sensation etc, cold water bath is good.
For patients with kapha disorders...

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The main secret behind this design is the use of waste water pipes and fittings to get the pipes to run downwards at 2 degrees to the horizontal into a central spine. The whole system needs to be self draining so that every last drop of warm water comes down into the pump at a good rate of flow so that the pump is adequately supplied.

It might be tempting to use pipe of a smaller diameter to catch more heat from the sun, but this might cause the pump inlet to be restricted and the pump output pressure to be significantly reduced and it would not then be a proper 'power' shower. Also, smaller diameter pipe would mean less water storage unless very long lengths were used, which would make self draining very tricky.

Self draining is critical as we don't want to introduce cold water into the system until the person has finished showering - there's nothing worse than a nice warm shower suddenly going cold! Also, in the winter the shower must be completely free of water or...

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I have a power shower which isn't delivering hot water or even warm water. Turning the knob on the shower to hotter makes no difference to the water temp, which stays at cold. I'm a noob when it comes to diy, so forgive my lack of knowledge.

My system is like the diagram on bottom right of

The pipe from the top of the hot water cylinder (shown as 6) is hot at the top (where it leaves the tank) and becomes lukewarm to nearer the pump. However the last six inches of the hot water inlet to the pump is very hot to touch, and the side of the pump is practically too hot to touch. Similarly, the first six inches of warm pipe out (towards shower) is hot to touch. It almost seems like the pump is running dry and the heat generated is from this, and not from hot hot water.

I should add that there's another power shower (different model) in the ensuite bathroom (being pumped from a separate pump also in the hotpress cupboard) and its works...

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How to identify your hot water system

When you are considering installing, upgrading or revamping a shower room or bathroom it is important you understand what type of water system you have and what equipment you may use (or need to use) as a consequence.

Over the years as the technology behind heating and storing water has developed so have the various components and ancillary controls required to allow the system work correctly.

To be able to select the correct type of product for your installation it is essential you understand the type of water system to which you intend to connect.

In the UK there are two basic methods of supplying water to outlets in the average household scenario (these examples assume the property is supplied from a water main rather than a borehole, well or water storage tower).

Method 1:

A gravity hot water system

Probably the most common hot...

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Call our service and warranty line on 1800 676 000 and select option 1. We are open Monday to Friday 8:30 am - 5:00 pm. You can also fill in a service request form which will be sent straight to our team and they will contact you.

Below, you can also find a Trouble Shooting Guide and Maintanance Tips to help you save time and money.

Unable to relight Pilot Flame (Gas)

If you have an AquaMax 4 Star gas Water Heater view the instructional video on relighting your Water Heater for the correct relighting procedure

Check your gas supply first as this is often the cause. If you are using LPG gas, check that the gas bottle is not empty or running low.

Check to ensure the gas isolation valve on the gas supply line to the water heater is open.

Is there a normal gas supply to the rest of the premises?

Try lighting another gas appliance to check if there is a normal gas supply present. If there is no gas, call the gas supplier.

If gas...

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I’m a bit of an eco-geek, and trying to green up my lifestyle. I figured solar hot water was one of the best places to start, and this is the story of the journey so far. I now have a running system that generally works very well and I am happy with. I wasn’t an easy road however and hopefully others can learn from my mistakes.

There are several rebates available from both the Federal and some State governments (not Queensland). You can also sell the REC’s from certified systems. The Federal Gov rebate is currently for $1000.
A DIY system will get none of the above.

My house was fitted with an old instantaneous gas hot water system that had poor flow, awful temperature regulation and chewed too much gas, especially with the pilot light. I initially started considering all the cheapskate systems I could think of, whilst trying to achieve my ideal of solar booted with instantaneous gas when required. I like having lots of hot water and harvest my water...

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Alexa Fleckenstein, M.D., author of Health2O, has a few things to say about cold showers. Within the book, she writes:

“Cold water can do more than just wash away sweat, dirt, old skin cells, bacteria, and viruses:

What a Cold Shower Can Do For You

Enhance immunity against infections and cancer Give your glands (thyroid, adrenals, ovaries/testes) a boost, improving hormonal activity Jump-start your mood and motivation Crank up your metabolism to fight type 2 diabetes, obesity, gout, rheumatic diseases, depression, and more Normalize your blood pressure Decrease chronic pain Train and improve your blood circulation Detoxify your body Fight fatigue Strengthen exhausted, irritable nerves Rejuvenate, heal, and tone the skin Deepen your breathing Help with insomnia Improve kidney function Reduce swelling and edema Improve lymphatic circulation, thereby increasing immune function Reduce stress by regulating your autonomic nervous system Regulate temperature,...
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1 Drain Cock 2 Incoming cold feed 3 Main tank immersion (night use mostly) 4 Top up immersion 5 Vent pipe leading back to cold water tank 6 Hot pipe to feed taps 7 Cold feed out 8 Hot from boiler 1 Drain Cock 2 Incoming cold feed 3 Return to boiler 4 Flow from boiler 5 Heat exchanger 6 Immersion 7 Hot feed to taps 8 Vent pipe

In the majority of houses in this country, there are two different types of hot water system. The circulation from a boiler around the radiators is the central heating system. The water to your taps is the domestic hot water. The water to your radiators is the central heating system.

Although both share some of the main components in the heating system, the water and pipework is not mixed.

Different ways of heating the domestic hot water need to be understood in order for the home owner to identify theirs and effect any maintenance needed. It will also be necessary to asses any type of shower you may wish to install.

The types of...

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