The document is a manual for Hayward SP1048-99A DRAINS. It introduces the safety instructions, installation method, etc. of the product.
This document is the owner's guide for Hayward Pool Products' Anti-Vortex Main Drains and covers, specifically models SP1048(AV) through SP1056(67). It details the components of the drain system, such as the heavy-duty body, frame, grate, relief valve, and plug. The guide emphasizes safety instructions regarding the prevention of bather entrapment and specifies that building codes require two functioning pool drain/suction outlets.
For anti-vortex type outlets, entrance velocities may be increased to six feet per second.
The standard cover has an open area of 13 square inches.
The ring is held to the main drain body by eight screws.