Swimming pool main drain assembly
First Claim
1. A swimming pool main drain assembly comprising a cup-shaped fitting recessed in a pool bottom and having an open mouth substantially coplanar with the pool bottom, a port in said fitting communicating with a suction inlet of a circulation pump, a return port assembly in said fitting communicating with an outlet of said circulation pump, said return port assembly including an outlet conduit which directs fluid flow in a substantially vertical direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A swimming pool main drain assembly comprises a cup-shaped fitting recessed in a pool bottom and having an open mouth substantially coplaner with the pool bottom. A port is provided in the fitting which communicates with the suction inlet of a circulation pump. A return port assembly is provided in the fitting which communicates with an outlet of the circulation pump. The return port assembly includes an outlet conduit which directs water in a substantially vertical direction out of the main drain and educts a portion of the pool water.
30 Citations
8 Claims
- 1. A swimming pool main drain assembly comprising a cup-shaped fitting recessed in a pool bottom and having an open mouth substantially coplanar with the pool bottom, a port in said fitting communicating with a suction inlet of a circulation pump, a return port assembly in said fitting communicating with an outlet of said circulation pump, said return port assembly including an outlet conduit which directs fluid flow in a substantially vertical direction.
- 6. A method of circulating water in a swimming pool having a circulating pump, a filter having an inlet connected to an outlet of said circulating pump, an inlet port connected to an outlet of said filter to deliver filtered water to said pool, and an outlet port connected to an inlet of said circulating pump comprising the steps of introducing said filtered water at a bottom of said pool in an upward stream withdrawing water from said pool in a downward stream in immediate adjacency to said upward stream, and diverting a portion of said downward stream into said upward stream.
Specification