How Your Filter Works - Pentair Predator II Owner's Manual

THIS FILTER OPERATES UNDER HIGH PRESSURE. WHEN ANY PART OF THE
CIRCULATING SYSTEM (e.g., LOCK RING, PUMP, FILTER, VALVES, ETC.) IS
SERVICED, AIR CAN ENTER THE SYSTEM AND BECOME PRESSURIZED.
PRESSURIZED AIR CAN CAUSE THE LID TO BE BLOWN OFF WHICH CAN RESULT IN
SEVERE INJURY, DEATH, OR PROPERTY DAMAGE. TO AVOID THIS POTENTIAL
HAZARD, FOLLOW THESE INSTRUCTIONS.
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SECTION II. HOW YOUR FILTER WORKS
Your cellular media filter is designed to produce clear, sparkling water and operate for years with a mini-
mum of maintenance when installed, operated and maintained in accordance with these instructions.
Your filter uses a cellular media cartridge element to remove dirt particles from the water. Dirt is collected
in the filter by the cellular media element as water flows through the filter. Water enters the filter through
the filter inlet port and is distributed evenly through the cellular media element. The dirt is removed by the
cellular media fabric and the clean water flows through the filter outlet port and is returned to the pool
through the piping or hoses.
After a period of time, dirt will accumulate in the filter causing a resistance to the flow of water through
the filter. This resistance results in a diminished flow of water and a rise in the filter pressure. Eventually
the filter will have removed so much dirt and the filter pressure risen to such a point that it will be neces-
sary to clean your filter, see Section V, Cleaning the Filter.
REV.C 4-3-12
WARNING
BEFORE REPOSITIONING VALVES AND BEFORE BEGINNING THE ASSEMBLY,
DISASSEMBLY, OR ADJUSTMENT OF THE LOCK RING 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 AIR RELIEF VALVE; (C) WAIT
UNTIL ALL PRESSURE IS RELIEVED.
WHENEVER INSTALLING THE FILTER LOCK RING FOLLOW THE CLEANING
FILTER INSTRUCTIONS EXACTLY.
ONCE SERVICE ON THE CIRCULATING SYSTEM IS COMPLETE FOLLOW
INITIAL START-UP AND RESTART INSTRUCTIONS EXACTLY.
MAINTAIN CIRCULATION SYSTEM PROPERLY. REPLACE WORN OR DAMAGED
PARTS IMMEDIATELY (e.g., lock ring, pressure gauge, relief valve, O-rings, etc.).
BE SURE THAT THE FILTER IS PROPERLY MOUNTED AND POSITIONED
ACCORDING TO INSTRUCTIONS PROVIDED.
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