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Because it is very durable and can be soldered to copper.

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βˆ™ 11y ago
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βˆ™ 11y ago

Because the are non-corrosive for sewage and are fire proof in commercial aplications

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βˆ™ 11y ago

Because it is non corrosive

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Q: Why are cast-iron pipes used in plumbing?
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Related questions

Can drano be used in plumbing pipes outside?

You must mean in DRAIN pipes. -It can not be used in plumbing pipes.


Is copper used in plumbing?

Yes, copper pipes are used extensively in plumbing.


Which elements are used to make water pipes?

Copper pipes are now most commonly used in plumbing. Lead pipes were used long ago, and the word plumbing is derived from the Latin word for lead (plumbum). Iron pipes were used until relatively inexpensive copper pipes became readily available during the twentieth century.


Why cant plumbing pipes be used for air conditioning?

Of course they can


What plumbing was used in the time of jesus?

They used lead pipes , which the Romans used in Rome.


What is a plug used for in plumbing?

Plumbing plugs are used for leaking pipes and while the pipe needs to be repaired. A plumbing plug will make the job much faster and easy.


What fuel is used for sweating plumbing pipes?

An acetylene or propane torch.


What are the plumbing pipes used in the older houses that are proned to leaking?

Lead,


Why are galvanized pipes a reason for your homeowners insurance to cancel on you?

Galvanized pipes are no longer used for home plumbing purposes. If you home still have galvanized pipes in you home then it indicates that your plumbing has likely never been updated.


What is lead used for?

it's used in plumbing and pipes.


What is hume pipe?

High quality concrete pipes are usually known as hume pipes. They are sometimes known as Indian hume pipes and are used in plumbing.


Where is copper pipes used in houses?

Under ground to everywhere in the house plumbing ( everywhere )