Water treatment tank with distributor plate assembly and method of assembly

A method of assembling a water treatment vessel comprising:

• attaching a distributor plate having a top portion, a bottom portion, and a peripheral outside edge to a distributor plate support structure, said support structure having an extension segment extending radially inwards to seat said bottom portion of said peripheral outside edge of said distributor plate, and a domed-shaped bottom edge;
• attaching a fluid transport tube to said distributor plate;
• placing said distributor plate, said distributor plate support structure, and said fluid transport tube in a bottom portion of said water treatment vessel such that said water treatment vessel bottom portion, having a domed-shaped bottom end, receives said domed-shaped bottom of said distributor plate support structure;
• attaching an upper portion of said water treatment vessel to said water treatment vessel bottom portion in a fluid-tight seal;
• and
• applying an outer covering to said water treatment vessel.

A fluid treatment vessel comprising

• an upper vessel portion having an aperture;
• a lower vessel portion attached to said upper vessel portion in a fluid-tight seal;
• a sub-assembly insertable within said lower vessel portion, said sub-assembly including:
• a distributor plate having a top side, a bottom side, a perimeter edge, and a central opening, and cavities formed on said top side, said cavities formed from sidewalls, and a cavity base, and having at least one slit or aperture located approximate said base for fluid flow through said cavity, said distributor plate supported proximate said lower vessel portion at said distributor plate bottom side at least at said distributor plate perimeter edge;
• and
• a fluid transfer tube in fluid communication with said distributor plate central opening and said aperture;
• wherein said distributor plate top side includes a first plurality of chords traversing across said distributor plate in a first direction and a second plurality of chords traversing across said distributor plate in a second direction perpendicular to said first direction, said first and second plurality of chords forming said sidewalls of said cavities, and extending to said perimeter edge;
• and
• wherein said first plurality of chords has a cross-section of an isosceles trapezoid with a first chord base located below said distributor plate top side and internal to said distributor plate.