Pentair Filter CFW Series - Manual (Page 2)

P/N 071057 2 Rev. C 4-23-01
SECTION I. POOL WATER MAINTENANCE
Properly treated pool water can prolong the life of your cartridges and insure a
sparkling clear pool. Pool chemistry is a specialized area and you should consult
your pool service specialist for specific details.
SECTION II. NEW POOL INSTALLATIONS
Initial Start Up - It may require a few days to clear up the pool water due to
debris found in the plumbing lines, i.e., plaster dust, etc. Check the pressure
gauge periodically for increase in pressure. This is normal the first week of
filtering, and it is suggested that the cartridges be removed and cleaned
frequently until the water clears up. Frequent cleaning of the cartridges in this
initial period will also help to increase the life of the cartridges and give you
longer filtering cycles thereafter.
Suggested Installation:
1. Install 2 in. PVC elbow (included with the filter) on bottom tank nipple, for return line to pool.
2. For convenience when draining the filter - remove the drain cap and install a 3/4 in. 90 deg. elbow. Install a 3/4 in.
valve or replace the drain cap on the opposite end of the nipple.
A check valve is recommended between the filter and heater to prevent hot water back-up from damaging the filter
internals.
The maximum operating pressure of the tank is 50 psi. Never operate the unit above this pressure or attach a pump to
this filter that has a shut-off pressure higher than 50 psi.
Never install a chemical feeder or ozonator upstream of the filter. Always locate downstream with a check valve be-
tween the feeder and the filter.
A positive shut off valve is not recommended downstream of the filter and/or heater. If the system is ever run with such
a valve closed, the internal air vent becomes inoperative and an explosive situation could exist. Running the system with
no flow can seriously damage the equipment.
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 BLOW OFF WHICH CAN RESULT IN SEVERE
INJURY, DEATH, OR PROPERTY DAMAGE. TO AVOID THIS POTENTIAL HAZARD, FOLLOW THESE
INSTRUCTIONS.
To Operate Filter
1. Set valves if any, to filter position.
2. Open air relief valve on top of filter. Failure to open the air relief valve could cause the lid to separate resulting in
serious bodily injury and/or major property damage.
3. Stand clear of the filter.
4. Start pump and wait until a steady jet of water emerges from relief valve, then close valve.
5. Filter will operate efficiently until pressure gauge indicates time for cleaning cartridges. Note these pressures
below. Depending on water conditions and pool usage, the cartridges may be cleaned and re-used several times
before replacement is needed.
Filter Starting Pressure
Note the pressure at start up when filter is clean. This will vary from pool to pool depending on pool line size. Write this
pressure in the following space. ___________ psi
Cleaning Required At:
Filter requires cleaning when pressure increases 8-10 psi over clean filter starting pressure. ____________psi