Meanings of faulty plumbing in English

I have to keep repeating to myself: it's faulty plumbing, it's a leaky roof.

The council inspectors signed off on faulty plumbing.

She hired local workmen to come in and repair the faulty plumbing and leaky roof and worn-out electrical equipment.

And suspicions are falling on faeces after high rates of spread being detected in high-rise apartments with faulty plumbing.

But the carnate tenants of the new building don't believe in ghosts, so the phenomena these ghosts cause are rationally explained as faulty plumbing, etc.

In the six years since cholera seeped from a UN camp's faulty plumbing, it has infected at least 800,000 Haitians and killed nearly 10,000.