as shown in fig1 through 4 , the present invention is directed towards a spa assembly generally indicated as 10 and including a base means 12 . the base means 12 is formed of an inflatable structure and has a sufficient overall dimension and configuration to serve as a supporting platform 14 . the supporting platform has a substantially horizontal orientation when disposed on a supporting surface such as a ground , floor , etc . further , the platform 14 comprises an exposed surface 16 which effectively defines the floor of a contained space 18 . as will be described in greater detail hereinafter , the contained space 18 is at least partially filled with water 20 to a sufficient level 20 &# 39 ; where occupants can enter the opening or entrance of the contained space ( best shown in fig1 ) without causing spillage of the water therefrom . again with regard to the embodiment of fig1 and 4 , the spa assembly 10 includes a containment means 22 preferably in the form on a containment wall 23 which may be substantially flexible and water impermeable and be attached to a peripheral portion as at 24 of the platform 14 or base means 12 and extend upwardly therefrom into supported engagement with support means generally indicated as 26 . the support means 26 , in the embodiment of fig1 and 4 comprises an inflatable support frame having stacked sections 28 and 30 . the support frame and its sections 28 and 30 are formed from a material having sufficient rigidity to be self - maintained in an upstanding position as shown in fig1 and also of sufficient strength to provide supporting connection to a leading edge as at 29 of the containment wall 23 . such leading edge 29 may be connected by a connecting strap or adhesive tape element 31 wherein its opposite ends are removably adhered to the upper periphery of the inflatable section 30 of the support means 26 . further structural features of the embodiment of fig1 include a neck support or bolster member 35 integrally or otherwise secured along an upper peripheral portion of section 30 so as to provide rest or support for the head and neck portions of occupants of the spa . with reference to fig2 and 3 , the present invention further comprises a fluid regulating means ( fig2 ) generally indicated as 36 preferably mounted within casing 38 and specifically structured to direct liquid flow into and out of the contained space 18 in a manner to be described hereinafter . a fluid directing means comprises conduit means generally indicated as 39 and including a plurality of conduits 41 , 42 and 43 mounted on the exposed surface 16 in a predetermined configuration or array so as to cover a majority of the exposed surface 16 . each of the conduit portions 41 , 42 , and 43 include a plurality of jet apertures 44 specifically structured to force a jet or current of water therethrough as indicated by the directional arrows in fig3 . further , each of the apertures 44 are mounted in cooperation with the conduit portions 41 , 42 and 43 so as to direct the jet or stream of liquid into the interior of the containment means and provide proper turbulence ( fig3 ) within the contained space 18 as desired . a drain means 47 includes a drain pipe 48 having a plurality of liquid receiving apertures 49 formed therein wherein the drain pipe 48 is mounted on the interior of the contained space 18 in liquid communication with the water 20 . through interaction of both the fluid directing means 39 and the drain means 47 , the water 20 is maintained in constant circulation and enters and leaves the contained space 18 at the same rate through cooperation of the above two set forth elements with the fluid regulating means to be described in greater detail hereinafter . water hose , pipe or like structure 50 serves to interconnect the drain pipe 48 to a pump inlet connection 55 which is disposed in direct liquid communication with the pump means generally indicated as 56 . further , a hose , pipe or like structure 52 is disposed in direct fluid communication with the outlet connection 54 which in turn is disposed in fluid communication with pump means 56 through valving structure 57 and 59 . further with regard to fig2 the fluid regulating means 36 comprises a drive motor 60 preferably being a two - speed motor interconnected in driving relation to the pump means 56 by appropriate power take - off or drive shaft 61 . plumbing in terms of connecting conduits 64 serves to interconnect the pump means with the valving structures 57 and 59 and the outlet and inlet connections 54 and 55 respectively . a supply inlet - outlet connection 53 may be interconnected through proper plumbing to a conventional water supply such as a hose , spigot , water heater , or the like when it is desired to fill the contained space 18 . alternately connection 53 may empty into a sink , conventional drain facility , etc . when it is desired to drain the entire contained space 18 and disassemble the spa 10 . other features of the fluid regulating means 36 includes a heater means 67 which may be of the flow through type wherein electricla resistance coils or units serve to transfer heat to water passing through the heating means 67 from the pump means 56 and the appropriate valving structures 57 and 59 . it should be noted however that the heater means 67 may include a number of commercially available structures which are either electrically , solar or gas operated . in operation , the contained space 18 is filled by interconnecting inlet 53 to a conventional water supply . this incoming water is received by valving structure 57 which may be a multi - directional valve such that the water is directed from valving structure 57 through multi - directional valving structure 59 along appropriate connecting conduit 64 and from the fluid regulating means 36 through appropriate outlet 54 . outlet 54 is interconnected to the fluid directing means 39 and the individual conduits 41 , 42 and 43 and the water passes through the plurality of jet apertures 44 into contained space 18 . when filling , the drain means 48 is closed or blocked from allowing exiting of water therethrough in that the pump means 56 is not activated . once filled to the desired level , the pump 56 is activated through operation of the two - speed drive motor 60 and drive shaft 61 . water is then drawn in through the drain means 47 and drain pipe 48 through inlet connection 55 , and into the pump means 56 . from the pump means 56 the water is at least partially forced through the first multi - directional valving structure 57 and into the heater means 67 for proper heating and / or temperature change . the water is then continuously forced from the heating means 67 through the second directional valving structure 59 and into the fluid directing means 39 through the outlet connection 54 . when it is desired to empty the water 20 from the contained space 18 , the pump is driven at the lower second speed of the drive motor 60 and the valving structure 59 is closed such that water from drain means 47 entering inlet connection 55 and forced through pump means 56 is directed from the fluid regulating casing 38 through the valving structure 57 and directly out of outlet 53 , bypassing the heater means 57 and of course the fluid directing means 39 leading back into the contained space 18 . the fluid directing means 36 also includes readily detachable connectors 69 structured for removably interconnecting respective inlets and outlets 53 , 54 , and 55 to the casing 38 in fluid communication with the pump means 56 and / or valving structures 57 , and 59 as indicated above . with regard to fig1 and 4 as well as other embodiments of the present invention , certain structural features further include appropriately positioned air inlets 70 , 72 , 72 &# 39 ; and 73 used to inflate the interior of the base means 12 , support frame portions 28 and 30 and neck bolster 35 respectively . such inflation may be accomplished through the use of conventional air pumps or like appliances . each of these outlets include proper plug structures so as to prevent escape of air once the respective structures are properly inflated . as shown in fig5 and 6 , another embodiment of the present invention cmprises a support means 26 &# 39 ; defined by a rigid support frame 71 formed from a molded plastic material and having a leading or front shelf portion 77 configured to hold numerous objects within trough 77 &# 39 ; such as drinks , containers , etc . alternately , the rigid support frame 71 could be fabricated other than by molding from plastic and could be structured from a metal , fiberglass or any other like rigid material . in this embodiment , the rigid frame 71 includes an upper peripheral portion disposed in totally surrounding relation to the entrance to the contained space 18 and at least partially defining such entrance . a plurality of leg elements 74 are mounted in engaging relation with a designated ground or supporting surface 11 and have a sufficient longitudinal dimension to maintain the surrounding rigid support frame 71 in upstanding , spaced apart relation to the surface 11 on which the platform 14 is positioned . in this embodiment as well as the other embodiments as discussed in fig5 through 10 , the containment means 22 includes containment wall 23 &# 39 ; interconnected about the periphery as at 24 and 24 &# 39 ; to the platform 14 of base means 12 and extending along a major portion of the length thereof . the containment wall 23 &# 39 ; extends upwardly from the periphery as at 24 and 24 &# 39 ; to supported interconnection with the rigid support frame 71 . this connection is accomplished by overlapping flaps 78 dimensioned and configured to extend above the upper peripheral surface and be secured thereto by a plurality of studs or outwardly extending cleat members 80 . the cleats 80 are integrally or fixedly secured to the support frame 71 and designed to engage flaps 78 through a plurality of correspondingly positioned apertures formed therein . other connecting structure could of course be utilized to supportingly engage flaps 78 with support frame 71 . by virtue of this configuration , the contained space 18 is defined by the surrounding containment wall 23 &# 39 ; and also by the exposed surface of a backrest portion 82 . this backrest portion 82 may be formed by an extension from one end of the platform 14 and exist on all embodiments of the present invention . the backrest 82 is disposed in spaced relation to the ground or supporting surface 11 and is angled upwardly from its interconnection with the platform 14 to a supported position adjacent the neck bolster 35 and in engageable relation with the rigid frame member 71 , 71 &# 39 ; and 71 &# 34 ; as set forth in fig5 through 10 . fig1 shows backrest 82 secured preferably integrally with inflatable sections 28 and 30 . with regard to the embodiments of fig7 and 9 , 10 , the primary difference is in the structure of the rigid support frame 71 &# 39 ; and 71 &# 34 ; and the supporting legs 74 . in the embodiment of fig7 and 8 , the support frame 71 &# 34 ; and the supporting legs 74 are made from a hollow pipe structure formed of polyvinylchloride ( pvc ) which is commercially available . similarly , the joints 75 may be fixedly or removably connected to one another so as to facilitate breakdown of the entire spa assembly and storage thereof . with regard to the embodiment of fig9 and 10 , the rigid support frame 71 &# 34 ; is made from a rigid metallic material with a chrome or like decorative material coating or plating thereon wherein the leg portions 74 are also appropriately formed from a metal having a chrome plating formed thereon in order to add to the aesthetic appearance of the support frame 71 &# 34 ;. it is therefore to be understood that the following claims are intended to cover all of the intended and specific features of the present invention herein described , and all statements of the scope of the invention which as a matter of language might be said to fall therebetween .