Abstract: A water fillable pad for positioning on the tub bottom, the top wall of said water fillable pad having a plurality of elongated air tubes serially apertured, and a compressor with a heating element delivering heated compressed air through a manifold tube to said air tube so heated bubbles rise and agitate the tub water around the bather. The water fillable pad has a hingedly connected air inflatable back rest and an air inflatable side pad which drapes over the tube side wall and down to the float surface. A foot drain tray assembly is mounted to the free side edge of the air inflatable side pad member on which a bather can stand after finishing his bath. The foot drain tray assembly can be tucked under the water fillable pad when arching the air inflatable side pad member, thus forming a dome for the bather and a capture space for the discharged air bubbles.