Corroded Pipes Water Heater: What You Need to Know for Homeowners

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Posted Nov 7, 2024

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Steel Pipes
Credit: pexels.com, Steel Pipes

A corroded pipes water heater can be a major concern for homeowners. Corrosion can lead to leaks, which can cause significant water damage and even lead to mold growth.

The average lifespan of a water heater is around 8-12 years, but corrosion can reduce this lifespan by up to 50%.

Leaks from corroded pipes can waste up to 10 gallons of water per day, which can increase your water bill significantly.

Regular maintenance, such as checking the temperature and pressure relief valve, can help prevent corrosion and extend the life of your water heater.

Causes of Rust

Rust is a common problem in water heaters, and it's essential to understand its causes to prevent it from happening in the first place. Rusty water coming from a hot water heater is often a sign of an anode rod breakdown, which can be replaced to prevent further corrosion.

Rust can also develop inside the tank itself if the anode rod fails to do its job. This is more common in older hot water heaters that haven't been properly maintained.

Credit: youtube.com, How to Stop Copper Pipe Corrosion | Ask This Old House

Corrosion in the plumbing lines is another common cause of rusty water, especially in galvanized steel pipes. Re-piping is usually the only solution to this problem, as the corrosion will only continue to spread.

If the rusty water comes from both the hot and cold water taps, it's likely due to a problem with the water supply, such as a broken water main or seasonal hydrant flushing. In most cases, you'll know in advance when the city schedules hydrant maintenance and will provide instructions on ensuring safe water.

The oxygen in water accelerates metal pipe degradation, which shows up as rust in steel pipes. Rusty pipes will develop an uneven surface inside and trap various residues and impurities more easily.

The most common causes of rusty water coming from a hot water heater include a corroded anode rod, a rusted tank, or a problem with the plumbing lines. It's essential to call a professional right away to identify the source of the rust and make repairs.

Here are some common causes of pipe corrosion:

  • Acidic water
  • Oxygenated water
  • Hard water
  • Metals in water
  • Electricity
  • High velocity water

These factors can cause corrosion, which can lead to leaks, clogs, and discoloration in your water.

Signs of Rust

Credit: youtube.com, Water Heater Autopsy: Sediment, Rust and Corrosion!

Rust can be a sneaky problem, but there are some telltale signs to look out for. If you notice rusty water flowing through your sink, it's likely a sign that something is amiss.

Rusty water can appear brown, blue, or green, and it's usually a sign of corroded pipes or a faulty water heater. If the water is cold, it's likely a pipe issue, but if it's hot, it could be a problem with the water heater.

Here are some common signs of rust:

  • Lower water pressure
  • Higher water bills
  • Cloudy or discolored water
  • Water that tastes or smells odd

If you notice any of these signs, it's a good idea to have a professional plumber investigate.

Discolored

Discolored water is a common sign of rust, and it's often easy to spot. Brown, blue, or green water flowing from your pipes can be a clear indication of corrosion.

The color of the water can give you a clue about the type of pipe that's corroding. For example, brown water is usually a sign of deteriorated steel or iron pipes.

Credit: youtube.com, Rusty Porcelain Sign cleaned with Evap-O-Rust / Rust removal ?

You might notice that the water takes on the color of the corrosion in the pipes. This can be a sign that the corrosion is more widespread than you think.

Here are some common colors you might see:

  • Brown: deteriorated steel or iron pipes
  • Blue-green: old copper pipes

If you're seeing discolored water, it's a good idea to investigate further to determine the cause. A plumber can help you figure out if corrosion is the culprit and what you can do to prevent further damage.

Visible

Visible signs of rust can be a clear indication of a problem. Rust can form a powdery coating on the exterior of pipes, which may appear reddish-brown or bluish-green.

If you notice pipes with this type of coating, it's likely they're corroding on the inside too. This is especially true if the pipes are hidden behind walls or above ceilings.

Rust can also be found in your hot water heater, where the anode rod has broken down and is releasing rust into the water. In some cases, the tank itself may be rusted, especially if it's an older unit.

Visible corrosion is a sign that you need to call a plumber for help. Don't wait until the problem gets worse and causes more damage.

Rust from Heater

Credit: youtube.com, How to fix a rusted water heater

Rust-colored water flowing through your sink is a clear indication that something is wrong with your hot water heater. If you notice this, the first thing to do is determine where the rust is coming from.

The hot water heater has an anode rod that's designed to draw in corrosion and rust, but it can break down and start rusting itself, causing the problem. This is more common with older hot water heaters.

If the rust is coming from the anode rod, it can be replaced, but if the tank itself is rusty, the entire unit will need to be replaced. A plumber will need to determine which one is causing the problem.

Rust can eat through pipes, so if you notice rusty water, it's essential to identify and replace the pipe quickly to avoid a water leak. If the cold water is rust-colored, the problem is likely with a pipe.

The anode rod can be replaced, and the hot water heater will need to be flushed to remove the rusty water. But if the tank is rusty, the entire unit will need to be replaced.

Preventing Rust

Credit: youtube.com, How to Replace a Corroded Water-Heater Fitting | This Old House

Rust water is a common issue that can be caused by a failing water heater or corroded pipes. A professional maintenance visit at least once a year can prevent many problems that lead to failure and issues like rusty water.

Regular maintenance is key to preventing rust water. Draining and flushing the water tank and an inspection and service of the mechanical parts can help identify signs of deterioration and corrosion.

You can also prevent pipe corrosion by installing a water softener or water filter. This can treat water before it travels through your pipes, where it can cause corrosion.

High water pressure can also cause corrosion, so it's essential to regulate it. If you suspect your water pressure is too high, ask a plumber to check it and install a pressure regulator if necessary.

Here are some steps to prevent pipe corrosion:

  1. Install a water softener.
  2. Regulate water pressure.
  3. Avoid running extremely hot water.

Additionally, you can remove any buildup using a pipe cleaner, apply an anti-rust paint or coating, or install vapor barriers to reduce exposure of pipes to moisture.

Repair and Replacement

Credit: youtube.com, Water Heater Repair Replacing a Corroded Supply Line

If you notice rust coming from your hot water heater, a plumber will need to determine whether the anode rod is causing the rust or if your tank is rusty. A simple peek inside the unit will answer this question.

If the anode rod is rusted, it can typically be replaced, as long as your unit is still in relatively good condition. Once replaced, the hot water heater will need to be flushed to remove the rusty water.

Rust in your water is a sign of a problem, so if you notice a red or brownish tint to your water and a metallic scent, it's time to call a plumber. Cleary Plumbing & Air can help to diagnose the problem and repair rusted pipes or fix or repair your water heater.

A corroded pipe can be fixed, but it depends on the extent of the problem. If it's just a small patch of rust, an epoxy or a clamp fitting may resolve the issue.

Credit: youtube.com, Corroded Pipes and Valves

However, if the pipe is severely corroded, it's best to replace it. Older pipes that are in poor shape may need to be replaced entirely.

The plumber may suggest removing the corroded pipe sections and replacing them with new piping and fittings. They may also install linings to stop corrosion and protect the piping.

If your water system is old and in poor shape, you may need to replace it entirely. Installing new pipes is a large and costly project, but it will resolve any water pipe corrosion issues for many years.

Consider the piping material when replacing your pipes. The flexible, freeze-resistant structure of PEX piping gives it an advantage in certain climates.

A plumber may propose several solutions depending on the extent of the problem, including:

  • Water Filtration
  • Water Softener
  • Water Purification System Installation
  • Reverse Osmosis System Installation

Frequently Asked Questions

How do you stop galvanic corrosion on a water heater?

To prevent galvanic corrosion on a water heater, install galvanized unions with plastic nipples on top of the tank. This simple solution effectively stops rusting and extends the lifespan of your water heater.

Ella Paolini

Writer

Ella Paolini is a seasoned writer and blogger with a passion for sharing her expertise on various topics, from lifestyle to travel. With over five years of experience in the industry, she has honed her writing skills and developed a unique voice that resonates with readers. As an avid traveler, Ella has explored many parts of the world, immersing herself in new cultures and experiences.

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