Joint device for drain pipes

A method for installing a drain assembly, the method comprising:

• obtaining a drain base having a support tube configured to be received in a drain hole defined in a floor, and a flange projecting outwardly from a top end of the support tube, the flange configured to rest on the floor around the drain hole;
• obtaining a joint device having a structural tube and an annular seal of resilient sealing material integral to and inseparably joined to a top end portion of the structural tube, the joint device separate from the drain base;
• sliding the joint device in close fitting engagement inside the support tube of the drain base, the joint device supported as a removable insert within the support tube;
• with the joint device received in the support tube of the drain base, sliding the structural tube of the joint device into sealing engagement over a top end portion of a drain pipe aligned with the drain hole in the floor;
• after the joint device has been slid into sealing engagement with the drain pipe and installed in the support tube of the drain base, completing a sealing interconnection between a tailpiece and the joint device by sliding the tailpiece by downward force through the drain hole into the joint device to form a sealing engagement between the annular seal of the joint device and an outer diameter of the tailpiece, the drain base absorbing the downward force and distributing the downward force to the floor;
• and
• securing the drain base to the floor.