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FILTER OPERATES UNDER HIGH PRESSURE.
When any part of the circulating system, (e.g., clamp, pump, filter, valve(s), etc.), is serviced, air can enter the
system and become pressurized. Pressurized air can cause the lid to separate which can result in severe injury,
death, or property damage. To avoid this potential hazard, follow these instructions:
1. Before repositioning valve(s) and before beginning the assembly, disassembly, or adjustment of
2. Whenever installing the filter clamp FOLLOW THE FILTER CLAMP INSTALLATION INSTRUCTIONS
3. Once service on the circulating system is complete FOLLOW SYSTEM RESTART INSTRUCTIONS
4. Maintain circulation system properly. Replace worn or damaged parts immediately, [e.g., clamp,
5. Be sure that the filter is properly mounted and positioned according to instructions provided.
Valve Positions Overview
FLOW PATH
SETTING
Function
Filter
Pump > Sand Top / DE Bottom > Through Filter > DE Top / Sand Bottom > Return
For normal filter action and vacuuming pool thru filter.
Backwash
Pump > DE Top / Sand Bottom > Through Filter > Sand Top / DE Bottom > Waste
For cleaning filter by reversing flow
Rinse
Pump > DE Top / Sand Bottom > Through Filter > DE Top / Sand Bottom > Waste
For start-up cleaning and resetting filter bed after backwashing
Waste
Pump > Waste
For vacuuming directly to waste, lowering pool level or draining pool
Closed
No Circulation - DO NOT USE THIS SETTING WITH PUMP OPERATING!
Recirculate
Pump > Return
For circulating water without going through filter
HI-FLOW™ Side Mounted Backwash Valve Installation and User' s Guide
the clamp or any other service of the circulating system: (A) Turn the pump OFF and shut OFF any
automatic controls to ensure the system is NOT inadvertently started during the servicing; (B) open the
manual air relief valve; (C) wait until all pressure is relieved.
EXACTLY.
EXACTLY.
pressure gauge, valve(s), o-rings, etc].
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