Abstract: A spa construction for use by humans comprising a shell for containing water and having a well for receiving the feet of the user. A seat is provided adjacent the well upon which the user can sit. A side wall is provided against which the user can rest his back. A first pump is provided having an inlet coupled into the bottom portion of the shell for withdrawing water from within the shell and an outlet coupled to the shell above the seat for introducing jets of water into the shell. An air inlet is provided for mixing air into the jets of water introduced into the shell. A filter and heater housing is carried by the shell and has disposed therein filter and heater elements. An additional pump is provided having an inlet coupled to the shell for drawing water from the shell into the filter and heater housing and discharging the same through an outlet coupled to the shell.