HI-FLOW™ Side Mounted Backwash Valve Installation and User's Guide
3
Valve Installation
1. Confirm correct valve is being used; DE valves for DE filters and Sand valves for Sand filters.
2. Install valve to filter by securing bulkhead nuts on valve to fittings on the filter.
Tighten the nuts by hand only! No additional tightness is required.
3. Plumb pump piping to center pipe in valve.
4. Plumb return and waste lines.
Winterizing
1. Drain and winterize pump and filter per manufacturer's instructions.
2. Depress valve handle and rotate so pointer on handle is between any two settings.
Replacement of Valve Top and Diverter Assembly
1. Set valve handle in any setting.
2. Remove cover screws.
3. Lift off valve top and diverter assembly.
4. Install new valve top and diverter assembly. Be sure arrows on valve top and bottom are aligned.
5. Tighten cover screws evenly and alternately. Do not over tighten.
Complete Disassembly
1. Remove Handle to diverter screw. Note arrow on top of diverter stem as handle is removed.
2. Evenly and alternately loosen cover screws.
Top is under spring load. Loosen all screws before removing any of them.
3. Remove cover screws and valve top.
4. Note location of O-ring and spring, and number of washers on diverter stem. Remove O-Ring, spring and washers.
5. Re-assemble in reverse order.
Note:
Prior to assembly, be sure bottom gasket and diverter sealing surface are clean and free from nicks to insure
positive sealing.
6. When replacing valve handle, be sure arrow on diverter stem and pointer on handle are pointed in the same direction.
DO NOT over tighten the screws or use motorized screwdrivers; as this can cause damage to the threads.
This valve is available in two models for use with sand type or diatomaceous earth (DE) type pool filters. Be
sure that you have the correct model for your filter. Installing the incorrect model may cause your pump to
dead head, or drain the pool when in backwash position.
