Why galvanized pipes should be replaced

Published on 3 September 2025 at 06:34

Galvanized pipe was common in homes built before the 1960s, but today most inspectors and plumbers recommend replacing it. Here’s why:

1. Corrosion and Rust

Galvanized steel is coated with zinc, but over time the coating wears off. This exposes the steel, which rusts from the inside out.Rust flakes can break off into your water supply. 2. Restricted Water Flow

As corrosion builds up inside, the diameter of the pipe gets smaller. This reduces water pressure and flow at fixtures.

3. Water Quality Issues

Rust and mineral buildup can discolor water (brown or yellow tint). Corrosion can introduce iron and other metals into the water. In some cases, lead can leach from the zinc coating if lead was part of the manufacturing process.

4. Leak Risk The older the pipe, the weaker it gets. Galvanized piping is prone to pinhole leaks and bursts, especially at joints.

 

👉 Best replacements today are copper, PEX, or CPVC, depending on budget and project scope.

 

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