1.   The operating control is actually opening the water valve and allowing hot water to enter the heater matrix.

2.   They turned off the main water valve to the house.

3.   But often the water valve opens and my plants get nothing but air.

4.   First turn off the burner, then close the water inlet valve to the boiler.

5.   Shut off the water valve to the toilet, flush the toilet, then empty the water remaining in the tank.

6.   That point was brought home last week when the Wolf Creek nuclear plant had to shut down because of the failure of a water valve.

7.   As the towers burned in the background, they stayed to turn off water valves, even though police ordered them to leave.

8.   Clusters of the tiny, rapidly multiplying zebra mussels have clogged water intake valves in several large U.S. cities along Lake Erie and the Ohio and Mississippi rivers.

9.   The Squalus sank when water inlet valves opened without tripping alarms in the control room.

10.   No-one has tried to force the Serbs to re-open the water valve in Cajnice.