1.  Mills were often built on an estuary where the water could be trapped upstream at high tide by sluice gates.

2.  And they wore plastic bags under their clothes to trap any water that might seep through.

3.  Besides, sealing the bricks with an ordinary masonry sealer can trap water inside the bricks, making matters worse.

4.  A sealer would make the bricks waterproof, but also could allow water to be trapped behind the bricks, causing the spalling all over again.

5.  A radiator that is perfectly level or pitched away from the intake valve will trap water so steam cannot enter.

6.  If such joints were caulked on the outside, the caulking could trap water behind the casing, causing paint to peel and wood to decay.

7.  If you caulked the sides of the casing on the outside, you could trap water behind the casing, causing decay.

8.  It happens when the cool condensed water gets trapped in the radiators or pipes.

9.  It is quick enough to trap water in the microscopic hairs on the antennule.

10.  Mold typically grows where water has been trapped, such as a depression under a building or a leak in a roof.