If your home's water has higher-than-normal copper levels, it's most likely due to corroded copper pipes. You see, as the pipes corrode, copper dissolves into the water that's transported into your home giving it that blueish-greenish tint. Besides, why would water be green?
Your water is green because of an explosive growth of small algae and phyto- and zooplanktons. Algae love the higher pH, but even in a balanced pond, algae are still there. If they're kept under control, they won't multiply. If the water is not balanced, algae will multiply quickly making the water “green”.
Secondly, why does the water in my tub look blue? A bluish or greenish tint in your bathtub water is typically due to the lighting used in your bathroom. When light shines on water, the water absorbs some colors and reflects others. A less likely cause of blue colored water is corrosion of the copper plumbing in your home.
Keeping this in view, what color should bath water be?
Oddly colored water Water should be clear coming out of your pipes. If you have another color, you may need a repair. White or cloudy water typically signifies air in your pipes; brown, red or yellow water means rust, often caused if a water main breaks in your area or if your pipes are very old.
Why does my bath water turn GREY?
When water appears gray or black it is typically caused by a disturbance of sediment in the pipeline. The discoloration is caused by presence of manganese. Manganese is naturally occurring sediment and is an aesthetic issue.
Related Question Answers
Is green bath water harmful?
Yes, green or blueish bath water can be harmful to your body. Well, water that has a blue/green tint usually means your home's water has excessive levels of copper. And if humans absorb too much copper (either via skin, inhalation or ingestion), it can cause: Vomiting. Is green water bad?
Green aquarium water is not considered dangerous to fish. In fact, many fish happily live in green-colored water in their natural environment. The same goes for plants. While the algae that makes up green aquarium water feeds on many of the same nutrients that your plants do, it shouldn't cause any direct harm. How do I stop my water going green?
Keep your pond from going green by using proper pond management principles and, as a last resort, chemicals that kill algae blooms. - Keep livestock and pets away from your pond by using fences, trellises, hedges or similar barriers.
- Avoid or minimize the use of plant fertilizer around your garden pond.
Is pink water dangerous?
Is Pink Water Safe To Drink or Use? As pink water does not pose any immediate health risks, it has been deemed safe to drink and use. However, if an individual has sensitive skin, it is advisable to use an alternative source of water for bathing until your tap water begins to run clear. Is copper in water bad for you?
Copper can get into your drinking water as the water passes through your household plumbing system. Your body needs some copper to stay healthy, but too much is harmful. Eating or drinking too much copper can cause vomiting, diarrhea, stomach cramps, nausea, liver damage, and kidney disease. Is green water bad for plants?
No, green water itself isnt harmfull to the plants But, the nutrients it is consuming will not be available to the plants so the plants "may" suffer as a result. Can I put bleach in my water fountain?
Fountain pumps aren't designed to work with concentrated levels of chlorine, but if an algae bloom won't die down, add 1/4 cup of chlorine bleach for every 5 gallons of water, and run the pump overnight so it circulates long enough to disinfect the entire system. Can you take a bath in brown water?
Why You Shouldn't Drink or Bathe in Brown Tap Water Brown water could mean your water supply has become compromised. Even clear water can be unsafe, but this discoloration is a tell-tale sign you need to contact plumbing services immediately. Why is my bath water pink?
Pink water is likely from potassium permanganate, a chemical used to oxidize iron and manganese. If too much is used your water will turn pink, and if far too much is used it will turn purple. As long as it is still pink it is not a danger to your health. Why is my shower water black?
There are several possible reasons for discolored water, but ultimately water testing will be critical in diagnosing the cause of the problem. Minerals, including iron and magnesium, algae, pipe degradation and resin beads can all cause black water. How do you get blue water stains out of a bathtub?
Just mix vinegar and baking soda into a paste, apply to the stains and wait about 10 minutes before wiping off. To prevent these stains, you'll want to have your water tested to see what is making your water so corrosive. What Colour is water?
blue
Why is my water purple?
Black, Blue, Pink or Purple Water from Mildew, Tank Leaks or Potassium Permanganate. Pink water is likely from potassium permanganate, a chemical used to oxidize iron and manganese. If too much is used your water will turn pink, and if far too much is used it will turn purple. Why is the water in my tub yellow?
Generally, the primary cause to yellow water is rust. Small amounts of iron and oxygen is a normal occurrence for water system, but when these are combined and in larger quantities you will have yellow water. This will result in yellow bath water as well as yellow water from faucets. Why is my bath water brown?
Minerals, sediment, or rust that accumulates in the water mains over time is the cause of brown or discolored water. When the water from your tap is brown, this indicates a disturbance in the water main that stirs up these deposits. You also might have a rusted pipe, and if left unattended to might create a leak. Why is Clear Water Blue?
"The ocean looks blue because red, orange and yellow (long wavelength light) are absorbed more strongly by water than is blue (short wavelength light). So when white light from the sun enters the ocean, it is mostly the blue that gets returned. Why is my water brown all of a sudden?
Minerals, sediment, or rust that accumulates in the water mains over time is the cause of brown or discolored water. The most common reason for residential brown water coming out homeowner's tap is from damaged or recently replaced water pipes. How do I know when my water is bad?
Water that's safe to drink should ideally be clear with no odor or funny taste. One way to tell if water is contaminated is to look for turbidity, or cloudiness. While cloudy water isn't necessarily dangerous to your health, it could signal the presence of unsafe pathogens or chemicals. Where does my bath water go?
The shower water drains into the sewer lines that eventually flow into waste water treatment plants. There the water is purified, usually a lot cleaner then when you used it, and then pumped back into the rivers or lakes where down stream users will repeat the cycle. Why is my bath water dirty?
Some possible causes of problems with water which appears dirty, has an unusual color, or sediment/particles include: Sediments or pipe materials from breaks in water mains or hydrants. Water mains in the distribution system can fail due to age, corrosion, high pressure surges, or damage by construction work. Is drinking cloudy water bad for you?
Cloudy water is not harmful to your health and may be caused by maintenance activities on your water supply. Is water blue or white?
While relatively small quantities of water appear to be colorless, pure water has a slight blue color that becomes a deeper blue as the thickness of the observed sample increases. The blue hue of water is an intrinsic property and is caused by selective absorption and scattering of white light. Is blue water safe to drink?
How can I tell if copper levels in my drinking water are elevated? A low level of copper usually leaves a green/blue stain on taps, pipes, hand basins, showers or toilets but there is no bitter or metallic taste. This water is still safe to drink. Why is my well water milky?
Cloudy water, also known as white water, is caused by air bubbles in the water. It is completely harmless. It usually happens when it is very cold outside because the solubility of air in water increases as water pressure increases and/or water temperature decreases. Cold water holds more air than warm water. What is mean by GREY water?
Grey water (also spelled gray water in the United States) or sullage is all the wastewater generated in households or office buildings from streams without fecal contamination, i.e. all streams except for the wastewater from toilets. 
