Remotely operated plug

A remotely operated plug assembly for a sink or basin with a drain, said plug assembly including:

• a sink waste unit secured within said drain, which sink waste unit includes a drain pipe;
• a plug movably and releasably secured within said drain, said plug including a spring and an inter-engaging means, said plug having a closed top and sides with holes formed therein, wherein said plug is movably secured within the drain by said inter-engaging means which permits vertical movement of said plug within said drain, between an open and a closed position (and vice versa), but which does not permit the removal of said plug from said drain under normal operating conditions, and said spring being to bias said plug to the open position, said open positing being a position in which said holes are open to said sink or basin, and said closed position being a position in which said closed top is substantially flush with the top of said sink waste unit;
• an opening mechanism to move the plug from the closed position to the open position, said mechanism being situated remotely from said drain and plug and connected by cabling to a retaining mechanism, said opening mechanism including an opening means to move and retain one end of said cabling;
• the retaining mechanism, to keep said plug in the closed position, includes spring-biassed means to release said retaining mechanism to allow said plug to move to the open position;
• means to allow the plug to be physically removed from said drain and replaced therein;
• and wherein
• said plug is capable of movement between the open and the closed positions by manual depression of said plug, and between the closed and the open positions by operation of said remotely placed opening mechanism to release the retaining mechanism via the cabling;
• and wherein
• said inter-engaging means, and the elements of said retaining mechanism being circumferentially positioned about said drain and plug and peripherally around said drain pipe.