a system is provided for enhancing the interconnectability of a bathtub to a plumbing system . more specifically , provided is a flexible conduit and an overflow assembly that allows for a portion of the overflow assembly to be easily located with the wall of a bathtub . the flexible conduit provided allows for adjustability of the conduit to the openings of the bathtub . in addition , provided are methods and apparatus that facilitate testing of a plumbing assembly . finally , an apparatus and methods are provided that protect portions of the finished bathtub assembly to decrease in the need for replacing said hardware . it is envisioned that aspects and inventions disclosed herein can be used in conjunction to facilitate the interconnection and protection of hardware associated with a bathtub .