Tub overflow drain test system

An overflow testing assembly, comprising:

• a tub having a wall defining an overflow opening;
• a connecting member mounted in said overflow opening with a front cylindrical portion and an outer annular flange, the front cylindrical portion defining an inner threaded surface;
• a test cap with a rear cylindrical portion with an outer threaded surface threadably engaged with said inner threaded surface and defining an inlet cover, an outwardly extending annular flange at a front portion of the rear cylindrical portion, and an integral breakaway seal connecting the inlet cover, the rear cylindrical portion defining an inner lip at a rear position;
• and
• a tab extending from said inlet cover, wherein a force applied to said severs said inlet cover to provide fluid communication through said overflow opening.

A system for testing and finishing an overflow opening in a tub, comprising:

• a connecting member with a front cylindrical portion and an outer annular flange, the front cylindrical portion defining an inner threaded surface;
• a test cap with a rear cylindrical portion with an outer threaded surface defining an inlet, an outwardly extending annular flange at a front portion of the rear cylindrical portion, and an integral breakaway seal closing the inlet and having a forward projecting integral tab, the rear cylindrical portion defining an inner lip at a rear position;
• and
• a finishing fixture with a front face and a plurality of angularly spaced tabs extending rearwardly from a position radially inward of the outer circumferential edge of the finishing fixture, wherein:
• the connecting member and test cap are attachable via their respective threaded surfaces,
• the breakaway seal is configured to be broken off from the test cap inner lip by applying force to said projecting tab, and
• the finishing fixture is configured for attachment to the test cap via engagement between the tabs and the inner lip.