Pentair D.E. Cartridge Style Filter - Manual (Page 3)

READ AND FOLLOW ALL SAFETY INSTRUCTIONS
Rev. F 6/15/06 3 P/N 99101200
WARNING
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.
1. 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 INADVERTANTLY STARTED DURING THE
SERVICING; (B) OPEN AIR RELIEF VALVE; (C) WAIT UNTIL ALL
PRESSURE IS RELIEVED.
2. WHENEVER INSTALLING THE FILTER LOCK RING FOLLOW THE
CLEANING FILTER INSTRUCTIONS EXACTLY.
3. ONCE SERVICE OF THE CIRCULATING SYSTEM IS COMPLETE
FOLLOW THE INITIAL START SYSTEM RESTART INSTRUCTIONS
EXACTLY.
4. MAINTAIN CIRCULATION SYSTEM PROPERLY. REPLACE WORN OR
DAMAGED PARTS IMMEDIATELY (e.g., lock ring, pressure gauge, relief
valve, o-rings, etc).
5. BE SURE THAT THE FILTER IS PROPERLY MOUNTED AND
POSITIONED ACCORDING TO THE INSTRUCTIONS PROVIDED.
SECTION II. HOW YOUR FILTER WORKS
Your Diatomaceous Earth (D.E.) filter is designed to produce clear, sparkling water and
operate for years with a minimum of maintenance when installed, operated and maintained in
accordance with these instructions.
A. YOUR FILTER USES ELEMENT GRIDS WITH D.E. TO REMOVE DIRT PARTICLES
FROM THE WATER.
1. Dirt is collected in the filter by the element grids as water flows through the filter. Water
enters the filter through the filter inlet port and is distributed evenly through the element
grids.
2. The dirt is removed by the D.E. coating on the fabric and the clean water flows through the
filter outlet port and is returned to the pool through the piping or hoses.
B. AFTER A PERIOD OF TIME, DIRT WILL ACCUMULATE IN THE FILTER CAUSING A
RESISTANCE TO THE FLOW OF WATER THROUGH THE FILTER.
1. 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 necessary to clean your filter, see SECTION V. CLEANING THE
FILTER.
2. The filter’s function is to remove suspended matter from the water and does not sanitize the
water. For sparkling clear water, the water must be sanitized as well as balanced.
3. Pool chemistry is a specialized area, and you should consult your local pool service
specialist for specific details. In general, proper pool sanitation requires a free chlorine
level of 1 to 2 PPM and a PH range of 7.2 to 7.6.
Rev. F 6/15/06 3 P/N 99101200