Tap water pipes are a crucial part of our daily lives, but have you ever stopped to think about what they're made of and how they're laid out?
Most tap water pipes are made of materials like copper, PVC, or PEX, which are durable and resistant to corrosion.
These pipes can be installed in various ways, including buried underground, above ground, or even inside walls.
Typically, tap water pipes are sized between 1/2 and 2 inches in diameter, depending on the water pressure and flow rate required.
Tap water pipes can last for many years, but their lifespan depends on factors like material quality, installation, and maintenance.
Related reading: What Are Water Pipes Made of
Causes and Effects
Tap water pipes can be a source of lead in our drinking water.
The primary cause of lead in tap water is the corrosion of plumbing pipes and fixtures containing lead.
This can happen when the lead in these pipes and fixtures dissolves or flakes into the water flowing from our faucets.
A fresh viewpoint: Lead Water Pipes
Causes
Lead gets into our tap water when plumbing pipes and fixtures containing lead corrode, causing the lead to dissolve or flake into the water.
This can happen even if the water looks clear, as lead is invisible to the naked eye.
The corrosion process can be triggered by acidic water, which can leach lead from pipes and fixtures.
In fact, water with a low pH level can cause lead to corrode faster.
Older homes and buildings are more likely to have lead pipes and fixtures, which increases the risk of lead contamination.
Take a look at this: Drinking Water from Lead Pipes
Health Effects
Lead exposure can cause serious health problems, including cardiovascular disease and damage to the brain, bones, teeth, and other organs.
The ancient Romans knew that lead can make you sick, and today's health experts agree that there is no safe level of lead exposure.
Fetuses, infants, and young children are at the greatest risk for lead poisoning because their brains and bodies are rapidly developing and more easily absorb lead.
Adults are also at risk, particularly from cardiovascular disease due to lead exposure.
As levels of lead increase, these harms become more severe.
Lead looks a lot like the mineral calcium, which is vital to healthy brain development and function, strong bones and teeth, and a healthy cardiovascular system.
As a result, lead that has been absorbed or ingested can travel through our bodies and cause problems in our bones, teeth, blood, liver, kidneys, and brain, disrupting normal biological function.
America's Pipe Problem
America's Pipe Problem is a pressing issue that affects millions of people across the United States. Between 1900 and 1950, many of America's largest cities installed lead water pipes, which can last 75 to 100 years or more.
The legacy of these lead pipes lives on today, with an estimated 9 million lead service lines across the country. This is a staggering number, and it's not just a relic of the past.
In fact, dozens of cities have been found to have dangerously elevated levels of lead in homes, schools, and daycare centers. High lead levels have been detected in tap water in cities like Baltimore, Buffalo, and Chicago.
One analysis found that between 2018 and 2020, 56 percent of the U.S. population drank from water systems with detectable levels of lead. This is a concerning statistic, and it highlights the widespread nature of the problem.
A new map by NRDC shows that lead pipes occur in every U.S. state, and many states and utilities are still unsure what their pipes are made of. This lack of knowledge means their inventories may grossly underestimate the number of lead lines.
Pipe Maintenance and Replacement
Pipe maintenance and replacement can be a hassle, but it's essential to ensure your tap water is safe to drink.
Old decaying pipes made of non-optimal alloys are a common problem in city lines, and they can be incredibly dangerous for families.
If you suspect lead or iron in your tap water, it's likely due to a decaying pipe somewhere between your home and the water treatment plant.
You can run tests at home to get a clear picture, and if the results are conclusive, whole-home filtration can be a good option.
Whole-home filtration systems can filter every drop of water that comes through your home, ensuring nothing bad gets in or comes out the garden hose.
Check this out: Mobile Home Water Pipes
Complex System Requires Ongoing Maintenance
A pipe system is a complex network that requires regular maintenance to function properly.
Corrosion can occur in as little as 6 months if not properly addressed, which is why routine inspections are crucial.
Pipe systems can be damaged by sediment buildup, which can happen in as little as 1 year if not regularly cleaned.
Proper maintenance can extend the life of a pipe system by up to 20 years.
Ignoring maintenance can lead to costly repairs, with some pipe replacements costing upwards of $10,000.
So Many Old
Old pipes are a major concern when it comes to home water systems. They're often made of materials that release dangerous particles into water over time. Among the worst are lead and iron.
Most people have forgotten about life without running water, which is a good thing, but it also means that many pipes laid decades ago continue to channel water, long since forgotten by maintenance and replacement schedules.
The number one most dangerous thing about any home water system is old pipes.
A majority of America's largest cities installed lead water pipes between 1900 and 1950. Some cities even mandated them, often in response to an industry campaign to enact rules requiring lead pipes. And because these pipes can last 75 to 100 years or more, their legacy lives on today.
A new map by NRDC shows that lead pipes occur in every U.S. state, and that many states and utilities do not know what the majority of their pipes are made of. This means their inventories may grossly underestimate the number of lead lines.
If your water tests positive for lead, iron, or both, there is probably an old decaying pipe somewhere between you and the water treatment plant, the only question is where.
Suggestion: Old Water Pipes
Corrosion and Protection
Corrosion is a chemical reaction that happens between the water and the lead-containing pipe or plumbing fixture.
Certain qualities of the water, such as acidity and dissolved materials, can play a major role in this reaction. The age and wear of the plumbing fixtures and the length of time water sits stagnant in the pipes also contribute to corrosion.
To prevent corrosion, phosphates can be added to the water to create a protective layer inside the pipes. This was a common practice in the past, but it was stopped when Flint switched to the Flint River, leading to the corrosion of pipes.
Here are some common sources of lead plumbing:
- Lead service lines: These are the pipes that connect homes and buildings to the water main in the street. Copper is a safer alternative.
- Lead-soldered joints: Solder is a metal alloy that helps connect pipes in household plumbing. Homes built before 1986 may still contain lead solder.
- Plumbing fixtures: Until 2014, regulations allowed manufacturers to use significant amounts of lead in the construction of faucets, valves, and other plumbing fixtures.
Corrosion of Plumbing
Corrosion is a chemical reaction that happens between the water and the lead-containing pipe or plumbing fixture. This reaction can be triggered by certain qualities of the water, such as acidity and dissolved materials.
The type of pipe used can also play a major role in corrosion. For example, galvanized pipes, which are commonly used, can corrode and release lead into the water.
The age and wear of plumbing fixtures can also contribute to corrosion. Older pipes and fixtures are more likely to corrode than newer ones.
Other factors that can contribute to corrosion include water temperature and the length of time water sits stagnant in the pipes.
Here are some common sources of lead plumbing:
- Lead service lines: Service lines are the pipes that connect homes and buildings to the water main in the street. Copper is a safer alternative.
- Lead-soldered joints: Solder is a metal alloy that helps connect pipes in household plumbing.
- Plumbing fixtures: Until 2014, regulations allowed manufacturers to use significant amounts of lead in the construction of faucets, valves, and other plumbing fixtures.
Protecting Assets
Protecting Assets is crucial when dealing with corrosion, especially when it comes to lead pipes in your home. Protect Your Tap is an online resource that helps you identify lead pipes and provides tips on reducing lead exposure in drinking water.
Lead pipes, also known as lead service lines, can be a significant threat to your health. The Protect Your Tap guide offers a quick check to help you identify these pipes in your home.
Certified laboratories can help you determine the lead levels in your water. Protect Your Tap provides information on certified laboratories for water testing.
Reducing lead exposure starts with taking action. The Protect Your Tap guide offers tips on actions to reduce lead exposure in drinking water.
Check this out: Safest Pipes for Drinking Water
Frequently Asked Questions
What pipes are used for tap water?
For tap water pipes, copper pipes with lead-free joint materials are the recommended choice, providing long-lasting and safe service. They prevent chemical leaching into drinking water, ensuring a healthy and reliable water supply.
Are tap water pipes safe?
Unfortunately, many tap water pipes in California contain lead, which can contaminate the water, posing a risk to public health. The safety of tap water pipes varies depending on the location and type of pipes used.
Sources
- https://www.epa.gov/ground-water-and-drinking-water/protect-your-tap-quick-check-lead
- https://www.michiganpublic.org/environment-science/2016-02-11/heres-what-drinking-water-pipes-look-like-with-and-without-corrosion-control
- https://www.nrdc.org/stories/causes-and-effects-lead-water
- https://minnesotareformer.com/2023/06/07/how-do-we-get-clean-water-out-of-the-tap/
- https://advancedwatersoftening.com/the-dangers-of-old-city-pipes-and-your-tap-water/
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