This document is an instruction sheet for the Hayward SP-740DE Lab Filter Control Valve (2"). It describes the functions of the valve positions, including Filter, Backwash, Waste, Drain, and Pool or Spa Boost, and explains how to select the best combination for a particular system.
The sheet also provides specific instructions for servicing the valve. It details the steps to gain access to the valve seat gasket, how to assemble the cover and key, and the procedure for complete disassembly and reassembly of the key and handle assembly.
| Valve Size | 2 inches |
|---|
The valve is specified as a 2-inch model.
Unused ports must be plugged using the supplied PVC plug.