Low profile circular drain with water stop for swimming pool and diverter for use therein

A sump drain for installation in a surface of a swimming pool or spa having a drain inlet, the sump drain comprising:

• a) an annular chamber having a contiguous annular top opening formed by an inner side wall, an outer side wall and a bottom surface;
• b) a plurality of outlet ports spaced along the bottom surface of the chamber;
• c) an inner water stop and an outer water stop, the inner water stop coupled to an exterior surface of the inner wall of the chamber and the outer water stop coupled to an exterior surface of the outer wall of the chamber, the water stops configured to collect water seeping into cracks between the drain and plaster when the drain is installed,
• d) a plurality of diverter plates configured to removeably couple to the inner and outer side walls of the annular chamber, wherein each diverter plate is curved along its length and has:
• i) two opposed straight ends;
• ii) a bottom surface having a plurality of louvers;
• and
• iii) a pair of side walls extending from opposed sides of the bottom surface;
• wherein one diverter plate is placed over each outlet port;
• and
• e) a grid cover configured to removeably couple to the annular top opening of the chamber, the grid cover having a multiplicity of openings.