Can old pipes affect my drinking water quality?

Yes, old pipes can significantly affect your drinking water quality, especially if they're made from certain materials or have deteriorated over time. The impact depends on the pipe material, age, and condition of your plumbing system.

Lead pipes and solder are the biggest concern in older Ottawa homes built before 1955. Lead can leach into drinking water, particularly when water sits in pipes for extended periods or if the water is acidic. Even homes built up to 1986 may have lead solder connecting copper pipes. The City of Ottawa has been working to replace lead service lines, but many homes still have lead plumbing inside the building.

Galvanized steel pipes, common in homes built between 1930-1980, corrode from the inside out over their 40-50 year lifespan. As they deteriorate, rust particles, sediment, and metallic tastes can affect your water. The corrosion also creates rough surfaces where bacteria can grow. You might notice discolored water, reduced water pressure, or a metallic taste.

Copper pipes generally provide good water quality but can impart a metallic taste when new, and very old copper may develop pinhole leaks that affect water flow and quality. PEX and modern materials typically don't affect taste or safety when properly installed.

In Ottawa's climate, the freeze-thaw cycles can accelerate pipe deterioration, particularly for older materials. If your home was built before 1980 and you notice discolored water, metallic tastes, or reduced pressure, it's worth having your plumbing system evaluated. Water testing can identify specific contaminants, and a licensed plumber can assess whether pipe replacement is needed.

Consider having your water tested if you suspect pipe-related quality issues, especially in older homes. For homes with lead concerns, running water for 30 seconds before drinking can help flush out water that's been sitting in pipes.