Abstract: A walk-in bathtub is disclosed, which may include a bathtub frame and a sliding door. The bathtub frame has a door receiving space to receive the sliding door and the sliding door may include a plurality of door seals that can be attached to the outer wall of the door receiving space to secure the sliding door. The door also includes a door lock, so when the door is appropriately positioned in the door receiving space, the door lock is used to further secure the door in a fixed position. The bathtub may include a pair of bottom sliding rails and the sliding door can travel thereon, and one end of each bottom sliding rail is curved to a predetermined extent to cause the sliding door to slightly tilt before entering the receiving space.

Abstract: A fast draining system may include a first two-way connector, a first water draining hole of a bathtub, and a plurality of connecting pipes. In one embodiment, the first two-way connector has a first connecting opening and a second connecting opening to connect with connecting pipes. The first two-way connector also has a top opening to align with the first draining hole of the bathtub. In a further embodiment, the fast draining system may include a second two-way connector to expedite the water draining process. The second two-way connector also has a first connecting opening, a second connecting opening to connect with the connecting pipes, and a top opening to align with a second water draining hole. Each of the water draining holes has a cover to retain the water in the bathtub.

Abstract: A bathtub assembly may include a bathtub, a handrail, a draining hole and an adjustable bathtub chair. In one embodiment, the bathtub can be a regular bathtub, and in another embodiment, the bathtub can be a walk-in bathtub that is more easily for the user to enter and exit. In an exemplary embodiment, the seat can gradually slide along the base and the user can stop the movement of the seat according to his/her preferences. The user can further turn the bathtub chair into a recliner to significantly enhance the comfort level during bathing. The user can also have a deeper soaking in the bathtub when the bathtub chair becomes a recliner.