On site in Albion this week completing an RPZ repair and whilst replacing the ball valves, our Backflow Prevention Specialist /Plumber has found that the galvanised pipework on this line is in desperate need of repair. This pipe lead underground and at this stage we can’t tell how far the damage is. Plumbaround Pty Ltd will return early next week to replace the pipework for the owners of the complex.
Galvanised pipes were most commonly used in Australian homes built prior to the 1950-60’s. They are not commonly installed in homes today – due to the introduction of copper piping and the cost of producing galvanised pipes, they have been phased out in regards to new installations. Galvanised pipes are iron pipes coated with zinc – this is to prevent corrosion. Galvanised pipes were the most durable pipe available before copper was introduced – but it has been noted that over time the zinc coating actually deteriorates causing the pipe to corrode from the inside and eventually causing it to leak and then burst.
The inside of the pipes can corrode and become plugged with lime, calcium, rust and other debris.
Worse still, is that they can start to leak at any time undetected inside a wall or cupboard which leads to costly damage and the spread of mold.
Many insurance companies will not give coverage to houses with these pipes and fittings or may charge you with a premium.