We're not going on the assumption that the pipe was improperly installed.

In cases where they are improperly installed, employed, or tampered with, the risk of fire can be increased.

But, according to Government statistics, 8 out of 10 such seats are improperly installed.

Door chains are often installed improperly, making them easily subjected to a number of attacks.

I say that the mechanism was improperly installed and/or insulated.

But they were coming from improperly installed gutters, not the roof.

It was not known if the stops had been improperly installed or later changed.

An 18-month-old fell four stories to his death yesterday in Queens because a window guard had been improperly installed, the police said.

What may be the result of improperly installed heating ducts?

The second possible reason is that some parts of the alarm system may be improperly installed.