A combination bathtub/shower base facility including a bathtub unit, and a shower base, wherein the bathtub unit and the shower base are molded together as one unitary piece. The shower base is positioned downstream of any fluid overflowing from the tub. The facility also includes means for providing easy installation of the facility. The facility provides a shower, a bathtub, a relaxation room, a rainroom, a steam space, and a total immersion bath experience.
