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why is my tub water blue

by Newell Russel Published 3 years ago Updated 3 years ago

Why Is My Bathtub Water Blue/Green?

  • Contaminated Water. Heavy levels of copper or other contaminants in your water supply will give your water an undesirable blue or green color.
  • Corroded Piping. Many plumbing systems use copper or galvanized steel plumbing. ...
  • Limescale Buildup. Limescale is a common issue in most bathrooms. ...
  • Mold or Mildew. ...

Blue or blue-green water likely means it contains copper. When water stands in copper pipes, the copper sometimes dissolves, which causes a blue tint when it reacts with the water. This can also give your water a metallic taste or leave blue-green stains on porcelain bath fixtures.

Full Answer

Why is the bottom of my bathtub blue?

The blue color you see in the bottom of your tub or sink is the leftover remnants from the insides of those same plumbing and household fixtures, literally being eaten away, from the inside out. How Low is too Low? The pH scale for water ranges between 0 and 14.

Why is my hot tub water Brown?

Brown spa water also occurs from contaminated fill water. During dry, hot periods, some municipal water supplies begin scraping the bottom of the barrel, which adds a lot of particulate matter to the water supply. You can combat this by using a pre-filter on your hose when you fill the spa.

Why is my water blue/green?

Why? 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:

What does it mean when tap water is blue?

A blue colour in drinking water is rare but when it happens it is due to corrosion of copper plumbing. The blue colour indicates that there are quite high levels of copper in the water. The problem only occurs where there is relatively new copper plumbing. The blue colour will disappear when the tap is run.

Is it OK to bathe in blue water?

Yes, in most cases, blue or green water can be very bad for your health. Usually, your water is discolored due to copper, which when ingested or bathed in can be bad for your health. Copper in small amounts can be okay to bathe in, but you should first determine how much of it is in your water.

What turns bath water blue?

Blue tint to your well water is normally caused by traces of copper in the water, the copper in the water is due to copper being corroded by the water that passes through it. Eliminate the cause of the copper corrosion, and the blue water should go away.Apr 17, 2020

Why does water look blue in a white bath tub?

Water can look blue in a white bath due to copper from the pipes, excess soap, leftover cleaning agents (i.e. drain cleaners), or blue-tinted lighting. It's recommended to let the water run to clear out the tub before using it.Jan 16, 2022

How do you fix blue water?

The prevention of blue or green water is the job of the plumber. They should use only as much flux as is necessary, completely flush new pipes and not allow water to stand in or warm up in new pipes for a long period of time. The plumbing should also be drained if it's not going to be used right away.

How do you get blue stains out of a bathtub?

Cleaning the bluish-greenish stains caused by corroding pipes is easy. 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.Oct 19, 2016

Why is my bathtub water green?

Copper gets into household water largely due to corrosion of plumbing pipes made of copper. The corrosion activity causes copper to dissolve into water lending it its greenish/bluish tint.

Can you bath in copper water?

Copper will not enter your body through skin or by breathing in vapours while showering or bathing. Bathing and showering in water that contains copper should not be a health risk.Jul 8, 2019

What does the blue color mean in the bottom of a tub?

The blue color you see in the bottom of your tub or sink is the leftover remnants from the insides of those same plumbing and household fixtures, literally being eaten away, from the inside out.

Why is my shower drain blue?

The blue stains that you’re seeing around your shower’s drain are most likely the remnants from the innermost layers of the copper piping in your home , being gradually eaten away . These blue stains are merely the “leftovers on the dinner plate” that your water was just a little too stuffed to finish.

What is the pH level of blue water?

Its hunger has been satisfied well before it ever reached your home. Blue stains start becoming evident for most homeowners at a pH level of 6.8 or less. Water that has a pH of 6.8 or less, is considered corrosive and can cause damage to any metal surfaces it comes in contact with.

What is the best way to neutralize water?

In cases of extremely low pH balance, solution feed systems are usually the most effective means of neutralizing water. These systems utilize a solution mixture made from either sodium carbonate or potassium. The mixture is very slowly injected into a home’s water supply using a small holding tank.

What happens when water enters your home?

If you have a home that gets its drinking water from a private well, and that water has a low pH, the instant water begins entering your home it immediately starts trying to satisfy it’s non-stop appetite on the first metallic surfaces it comes in contact with – your piping, heating systems, fixtures and appliances.

Can water damage a heating system?

Most of the heating systems manufactured today can be damaged by water with low pH – especially the newer “tank-less” style on demand systems that are becoming more and more popular.

Why does my water have copper in it?

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.

What causes a water pipe to break down?

High concentration of other chemicals/organisms in the water (like dissolved oxygen, salts and bacteria) Sand, sediment and grit scraping against the pipe, causing it to break down and corrode. High water velocity, which wears down the inner lining of the pipe through water turbulence.

What causes copper pipes to corrode?

But sometimes, copper piping can corrode faster than expected due to: 1 pH imbalance of the water —if the pH levels are less than 7.0 and greater than 8.5, the water is more likely to corrode copper pipes 2 High concentration of other chemicals/organisms in the water (like dissolved oxygen, salts and bacteria) 3 Sand, sediment and grit scraping against the pipe, causing it to break down and corrode 4 High water velocity, which wears down the inner lining of the pipe through water turbulence

How to tell if you have copper pipes?

Really the only way to tell if you have copper pipes is to look at them. Try going to your attic or a crawlspace to see if you can locate any protruding pipes. If your pipes look red/brown, then you have copper pipes. If you don’t have copper pipes, but your bathwater is still green, contact a plumber to test your water ...

Why does copper corrode?

But sometimes, copper piping can corrode faster than expected due to: pH imbalance of the water —if the pH levels are less than 7.0 and greater than 8.5, the water is more likely to corrode copper pipes.

Why is my hot tub water yellow?

Yellow hot tub water can also come from an excess of pollen in the springtime , especially if you have left the spa cover for some time. Iron oxides in well water can also impart a yellowish color to the water, especially if the spa turned yellow after shocking. If you are on a well water system, use a pre-filter to remove all minerals ...

Why is my hot tub water turning brown?

If your spa has suddenly turned brown, much like the color of tea, again you can usually find the problem to be high levels of minerals, namely iron oxide. This may occur within hours after shocking the spa or making big pH adjustments.

What is the color of hot tub water?

HOT TUB WATER IS YELLOW. Yellow algae is a particularly resistant type of algae that can exist in a dark heated hot tub, even in the presence of normal bromine or chlorine levels. It seeks out small, out-of-the-way crevices, and when in full bloom, it will deposit itself in sheets across spa surfaces. Treatment for yellow algae is ...

Why is my spa green?

When your spa has a shade of green, you may immediately think of algae. If your sanitizer has been low or your filter cartridge is dirty, it very well could be algae. Touch the sides of the spa, and if it feels slimy, you can bet you have a small algae bloom on your hands. Algae can grow even under a spa cover, in the dark, hot water.

How to treat yellow algae in spa?

Treatment for yellow algae is to use a very high level of chlorine spa shock. Balance the water first, and turn off the heater before shocking the spa. Allow the water to circulate for several hours, with the cover removed. If the level drops to zero within 24 hours, shock the spa again, until it holds the chlorine level.

How to treat algae in hot tub?

To treat a hot tub for algae, check and balance the pH and alkalinity, and add a shock treatment. After filtering out dead algae, it's always recommended to replace the spa cartridge with a new one. Green hot tub water can also be caused by a mineral we know as copper.

Why is my spa water brown?

Brown spa water also occurs from contaminated fill water. During dry, hot periods, some municipal water supplies begin scraping the bottom of the barrel, which adds a lot of particulate matter to the water supply. You can combat this by using a pre-filter on your hose when you fill the spa.

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