Some Information about Plumbing and Plumbing tools
A Butterfly valve is a type of flow control device, used to make a fluid start or stop flowing through a section of pipe. The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe. The plate has a rod through it connected to a handle on the outside of the valve. Rotating the handle turns the plate either parallel or perpendicular to the flow of water, shutting off the flow. It is a very robust and reliable design. However, unlike the ball valve, the plate does not rotate out of the flow of water, so that a pressure drop is induced in the flow.
Some Plumbing DOs and DON'Ts
DON'T - Poke any wire or rod from your sink into drain.
DON'T - Have a shelf above your china sinks with heavy objects
that could fall into sink. Will crack china sink or chip cast
iron type.
DON'T - Use your toilet tank lid for a shelf.
DON'T - Have a knick-knack shelf above your toilet.
