Low profile circular drain with water stop for swimming pools

摘要

A sump drain includes a ring-shaped chamber having an inner sidewall with a diameter of at least about 18 inches and an outer sidewall, and a circular opening between the sidewalls preferably about an inch wide and optionally having a grid cover. Preferably the inner sidewall has a number of ports extending inwardly to radial conduits to a central hub for tying into a pool or spa filtering system, with the central hub operating as a clean out and having a removable cap. Upon installation, plaster substantially fills the space between the chamber and the central hub, such that the sump drain attractively blends in with the pool or spa floor. When installed, the top opening is preferably substantially flush with the pool or spa floor while being safely unblockable. And the sump drain preferably further includes channels both outboard and inboard from the chamber top opening and around the central hub, to help prevent water from passing through the plaster into the shotcrete of the pool or spa.

主权项

1. A sump drain for connecting to a filtering system and installation in a plaster floor of a swimming pool or spa comprising:
a chamber disposed about a central hub displaced radially inward therefrom to be embedded in the plaster floor, the chamber having an inner sidewall, an outer sidewall defining a contiguous annular top opening therebetween, the chamber being formed with a gutter formed on the outer sidewall for embedded anchoring in the plaster floor; the contiguous annular top opening of the chamber being in open communication with the central hub through a plurality of ports defined therebetween for tying into the filtering system; and, the central hub having a removable cap in coplanar arrangement with the contiguous annular top opening; and the sump drain configured such that when installed plaster substantially fills the space between the chamber and the central hub.