Repairing a Worn Stop Cock
The plug of a worn stop cock, or one that has been reground, of the type shown in the illustration will project beyond the bottom so that the ring, or washer, and screw will not draw it tightly into place.
Removing a Portion of the Plug and Shortening the Screw Allows the Parts to be Drawn Tightly Together
To remedy this trouble, file off a portion of the plug on the line AA and also file off a sufficient amount of the screw on the line BB. When the plug is replaced and the washer and screw drawn up, the stop cock will be as good as a new one.—Contributed by James M. Kane, Doylestown, Pa.