Galvanised pipes are zinc coated steel pipes. The zinc is a sacrificial layer that blocks the iron in the pipes from oxidising (i.e. rusting).   Many old homes in New Zealand still have galvanised pipework in their plumbing systems.

Galvanised pipes will rust over time and this will lead to leaks and ruptures. They may appear okay externally but inside they can be disasters waiting to happen. The signs of trouble are subtle, check out what to look for…

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