Stop Cock

It is normally provided before the water meter. It is connected at the end of the service pipe and close to the boundary wall of the premises in an accessible position. It is housed within a small masonry chamber along with removable cover for stooping or opening the water supply to the premises.

While water meter is provided, both the water meter and stop-cock is housed in the same chamber.It is provided at the entrance of the water connection to the premises and when closed, stops water supply to the premises thus helping in some major repair and maintenance work. The cross-section of a classical stop-cock is shown in Figure 10. Water passes by the opening when the stem of the valve is raised. When the stem is brought down, it rests against the seat and passage of water is closed thus supply of water is stopped.

                                                           Figure : A Typical Stop Cock