Patent ID: 7354495

Claim:
A method for making a water treatment vessel, comprising the steps of: (a) providing a thermoplastic cylindrical liner and first and second thermoplastic endcaps; (b) bonding a diffuser to the second end cap, said diffuser including a fluid inlet connector; (c) bonding a separator to an interior surface of said cylindrical liner; (d) bonding the first endcap to a first end of said cylindrical liner and bonding the second endcap to a second end of said cylindrical liner to define a thermoplastic vessel subassembly; (e) wrapping the vessel subassembly with an overwrap layer so as to define a reinforced pressure vessel; and, (f) inserting a water inlet tube through an opening in the first endcap and an opening in said separator, and connecting said water inlet tube to the fluid inlet connector of said diffuser.