2. A group wash station as claimed in claim 1 in which said bowl base portion is bonded to said load-supporting plate.

3. A group wash station as claimed in claim 2 in which said upstanding peripheral wall of said base pedestal has an inverted generally frusto-conical configuration and an upper edge flange secured to said annular part of said wash bowl in general proximity to said outer edge of said load-supporting plate.

4. A group wash station as claimed in claim 3 in which said upstanding peripheral wall of said base pedestal includes upper and lower portions each having an inverted generally frusto-conical configuration and being interconnected by an integrally formed web extending between said upper and lower portions of said base pedestal.

5. A group wash station as claimed in claim 3 in which said annular part of said wash bowl is secured to said outer wall of said wash bowl peripherally thereabout.

6. A group wash station as claimed in claim 5 in which said base pedestal and said wash bowl are formed of a reinforced plastics material and said load-supporting plate is formed of a more rigid material.

7. A group wash station as claimed in claim 1 which additionally comprises an upright and hollow spray post mounted on said load-supporting plate and a circumferentially perforated hollow annular collar mounted on said spray post above said wash bowl and in fluid communication with the interior of said spray post for the flow of water upwardly through said spray post and into said annular collar for final discharge through the circumferential perforations therein.

8. A group wash station as claimed in claim 7 which additionally comprises a solenoid valve having open and closed positions and connected to said spray post by a transfer conduit for the supply of water into said spray post from a water supply conduit, a pressure-actuable solenoid valve control tread disposed around said base pedestal and a signal transfer means operatively interconnecting said tread and said solenoid valve whereby said solenoid valve is moved into its open position for the supply of water into said spray post during pressure application upon said tread.

9. A group wash station as claimed in claim 8 in which said tread houses an essentially closed and resiliently compressible pneumatic tube in pressure communication through said signal transfer means with a pressure-actuable switch operatively connected to said solenoid valve whereby said solenoid valve is moved into its open position during the application of pressure to said tread.

10. A group wash station as claimed in claim 7 which additionally comprises a fluid soap container mounted on an upper end of said spray post and having a base and a plurality of manually operable soap-dispensing valves provided in said base thereof.

11. A group wash station as claimed in claim 10 in which each said soap-dispensing valve includes a valve body with an upstanding male threaded sleeve disposed within a corresponding opening in said base of said fluid soap container, a shoulder on each sad sleeve abutting the undersurface of said base of said fluid soap container and each said valve body being retained in position in said base of said fluid soap container by a female threaded member screwed onto said sleeve within said container for abutment with a top surface of said base of said container, and in which each said valve comprises a valve stem carrying a valve closure member and extending below said base of said container and spring means downwardly biasing the valve member into a closed position thereof.