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An apparatus including a plug detector mechanism mounted adjacent an interior surface of a drain plug aperture directed through a transom of a boat. The detecting means includes a spring-biased switch positionable from an extended position in the absence of a plug to a retracted position in the pres

An apparatus including a plug detector mechanism mounted adjacent an interior surface of a drain plug aperture directed through a transom of a boat. The detecting means includes a spring-biased switch positionable from an extended position in the absence of a plug to a retracted position in the presence of a plug directed through the transom. The switch is cooperative with an audible member to effect alarm in the absence of the plug.

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A drain plug warning apparatus in combination with a boat transom, the boat transom including a vertical wall including a rear vertical wall interior surface, and a drain plug aperture positioned therethrough positioned adjacent a floor interior surface of a floor associated with a boat, wherein the

A drain plug warning apparatus in combination with a boat transom, the boat transom including a vertical wall including a rear vertical wall interior surface, and a drain plug aperture positioned therethrough positioned adjacent a floor interior surface of a floor associated with a boat, wherein the apparatus comprises: a support plate mounted to the rear vertical wall interior surface of the transom, wherein the support plate includes a first switch, the first switch including a housing and a reciprocating member mounted in the housing wherein the reciprocating member is in a forward second position extended from the housing in the absence of drain plug and in a retracted first position directed interiorly of the housing in the presence of the drain plug directed through the drain plug aperture; an alarm member in electrical communication with the first switch; a battery in electrical communication with the first switch and the alarm member wherein the alarm member is actuated upon the reciprocating member extended to the forward second position; and the support plate including an upper planar web parallel to a lower planar web, with a transverse web orthogonally oriented between the upper planar web and the lower planar web, wherein the transverse web is integrally secured to a lower terminal edge of the upper planar web and to an upper terminal edge of the lower planar web, and the lower planar web includes a threaded aperture threadedly receiving the first switch, and the first switch including a threaded forward end, the threaded forward end reciprocatably received within the threaded aperture to permit adjustment of the first switch relative to the lower planar web.