Galvanized pipes were used regularly in the installation of Toronto home plumbing systems because they provided a few very useful traits – they are long-lasting and relatively inexpensive. The problem is that long-lasting does not mean indefinite, and thus the need to remove galvanized pipes. As a Toronto plumber we’ve encountered countless issues with galvanized pipes. As the name suggests, galvanized plumbing pipes are steel pipes that have been treated with a layer of zinc in order to inhibit rusting. However, as time passes this zinc layer slowly erodes away leaving the bare steel open to the water which inevitably leads to rusting and the potential for other plumbing problems.
How do galvanized pipes fail
Although these pipes have an extensive lifespan, approximately 50 years, they will eventually fail. The failure is caused by the pipes rusting away from the inside out, not only will they rust away causing weak structural properties causing leaks and collapses but they will also develop calcium deposits inside of the pipe. With the right combination of neglect and lack of home plumbing inspection galvanized pipes can eventually become completely clogged with calcium build up resulting in low water pressure and rusty water.
The Problems with Galvanized Pipes
Galvanized pipes, which are steel pipes coated with a layer of zinc to prevent rust and corrosion, were once a standard choice for plumbing. However, over time, several issues have become apparent with this type of piping. These problems can affect both the efficiency and safety of your water supply. Here’s an in-depth look at the main issues associated with galvanized pipes:
1. Reduced Water Pressure
Cause: Galvanized pipes are susceptible to corrosion and the build-up of mineral deposits, such as calcium. As the zinc coating wears off over time, the internal steel surface begins to corrode. This corrosion results in the formation of rust and mineral deposits, which gradually narrow the internal diameter of the pipe.
Effect: The reduction in the pipe’s internal diameter constricts the flow of water, leading to decreased water pressure throughout the plumbing system. This diminished flow can affect everything from the strength of your shower to the efficiency of your household appliances.
Solution: To address reduced water pressure caused by galvanized pipes, the most effective remedy is to replace the affected piping with modern alternatives, such as copper or PEX (cross-linked polyethylene). Replacing the pipes will restore proper water flow and pressure, improving overall water distribution throughout your home.
2. Rusty Water
Cause: As galvanized pipes corrode, rust accumulates inside the pipes. When water sits in these pipes, especially after long periods of inactivity, it can become discolored with a rusty or brownish tint. This is a direct result of rust particles being released into the water supply.
Effect: Rusty water can be unappealing and potentially harmful. It not only affects the appearance and taste of your water but can also pose health risks if ingested. Additionally, rusty water can stain fixtures, clothing, and appliances, leading to further inconvenience and potential damage.
Solution: To address the issue of rusty water, replacing galvanized pipes with newer materials is the most reliable solution. Copper and PEX pipes are resistant to rust and corrosion, ensuring cleaner water and preventing further contamination.
3. Lead Contamination
Cause: Some older galvanized pipes may have been connected to plumbing systems using lead solder or fittings. Over time, lead can leach into the water supply, especially if the pipes are corroded or if the water has high acidity.
Effect: Lead contamination in drinking water is a serious health concern, particularly for young children and pregnant women. Lead exposure can lead to developmental issues, cognitive impairments, and other health problems.
Solution: If you suspect lead contamination, it is crucial to have your water tested by a certified laboratory. If lead is detected, replacing galvanized pipes and any lead-containing fittings with lead-free alternatives is essential to ensure safe drinking water. Professional plumbers can assist in identifying and addressing lead contamination issues.
4. Long-Term Costs
Cause: Galvanized pipes often require ongoing maintenance due to their susceptibility to corrosion and rust. The longer these pipes are in use, the more frequent the repairs and maintenance may become.
Effect: Over time, the cost of maintaining and repairing galvanized pipes can add up. The potential for increased water damage, frequent repairs, and reduced efficiency can lead to higher overall expenses compared to replacing the pipes with more durable materials.
Solution: Investing in modern piping solutions like copper or PEX can provide long-term savings. These materials are more resistant to corrosion and rust, reducing the need for frequent repairs and maintenance.
Conclusion
Galvanized pipes, while once a popular choice, present several significant issues, including reduced water pressure, rusty water, and potential lead contamination. Homeowners with galvanized piping should consider having their systems inspected and, if necessary, replaced with modern materials. Addressing these problems proactively can help ensure a safer, more efficient plumbing system and protect your home from potential water damage and health risks. If you experience any of these issues, consulting with a professional plumber is essential to determine the best course of action and ensure the continued reliability of your plumbing system.
Lead plumbing is a problem in older Toronto area homes, with or without galvanized pipes, and it should be removed as soon as possible. Many homes have had their lead service pipe removed and upgraded with modern plumbing service, however for homes that had galvanized plumbing while their lead service lines were in-place there exists another area of concern. Galvanized piping has been found to accumulate lead that has leeched into the water from the old lead service lines. As the galvanized plumbing corrodes (as it inevitably will do) it releases this built up lead back into the water. Therefore, in order to completely eliminate all traces of lead contamination from it is necessary to also remove the galvanized plumbing.
“How can I tell if my home has galvanized plumbing?”
There is a very simple way you can tell if your Toronto area home has galvanized pipes installed. You’ll need to first locate where the plumbing enters into your home or property. Scratch the pipe using a key or dime and you will be able to tell by the colour of the pipe; if the pipe is a silver or gray in colour you will be able to tell that the pipe is in-fact galvanized.
Remove your galvanized pipe problems
The easiest method to solve the problem of corroding or rusting galvanized pipe is to simply have it removed. There are a myriad of local plumbers that can solve this task for you, if you’re in Toronto you can call up your local plumber in Toronto – we are extremely skilled in the removal of galvanized pipes and installation of replacement piping such as copper pipes, ABS pipes, and PEX piping.
For more information please feel free to give us a call at 416-252-5557.
