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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 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) stand clear of the filter; (D) wait until all pressure is relieved.
2. Whenever installing the filter clamp FOLLOW THE FILTER CLAMP INSTALLATION INSTRUCTIONS EXACTLY.
3. Once service on the circulating system is complete FOLLOW SYSTEM RESTART INSTRUCTIONS EXACTLY.
4. Maintain circulation system properly. Replace worn or damaged parts immediately, (e.g., clamp, pressure gauge, valve(s), O-rings, etc).
5. Be sure that the filter is properly mounted and positioned according to instructions provided.
Operating the filter system without filter internal components installed can allow air to accumulate within the filter. Pressurized air can cause the lid to
separate which can result in severe injury, death or property damage. Always operate filter system with filter internal components installed. To prevent
equipment damage and possible bodily injury and/or property damage, always turn the pump off before changing the valve positions.
Please follow all manufacturers' posted instructions, warnings and cautions when using pool or spa sanitizers, and/or other chlorine replacement
treatments.
When to Clean the Filter
Properly monitoring and cleaning the filter will prevent
avoidable repairs and maintenance.
Clean your filter when pressure reads between 8-10 psi
higher than the "Original Starting Pressure" recorded in Table
4 on the previous page, or when significant reduction in flow is
noticed. The pressure reading increases as it filters dirt from
your pool. This build up of pressure will vary due to different
bathing loads, temperature, environmental conditions, etc.
Backwashing the Filter
Most effective cleaning of the filter elements requires
disassembly and hand cleaning. However, for convenience
and to extend the interval between cleanings the FullFloXF
4000-Series D.E. Filter is equipped with an integrated
backwash valve.
1. Turn the entire pool/spa system off at the circuit breaker.
2. Open the HiFlow™ Manual Air Relief Valve and wait
until all pressure is released from the system. Never
attempt to assemble, disassemble or adjust the filter
clamp while there is pressure in the filter.
3. Turn skimmer to full skim position and close main drain
line.
4. Remove pump lid and clean basket. Replace the basket
and secure lid.
5. Position the valve to BACKWASH. See Figure 9.
6. Open the manual air relief valve until it snaps into the
full open position to release trapped air in the filter (this
only requires a quarter turn counter-clockwise).
7. Stand clear of the tank, then start the pump.
8. Close the manual air relief valve after a steady stream
of water appears.
9. When water flows clear in the sight glass or discharge
line, shut the pump off. This should take about three (3)
minutes.
Note: Backwashing is most effective when the filter is
operated at the maximum listed flow rate.
10. If your filtration system contains a Separation Tank
follow the instructions in Cleaning the Separation
Tank, on page 11. If a Separation Tank is not installed
proceed to Step 11.
11. Rotate rotary valve handle back to FILTER.
12. Restart system, refer to Start-Up Instructions on page
8.
13. Proceed with operation and precoat filter with the
required amount of D.E.
Refer to Table 2 on page 6, under Preparing Diatomite.
Manual Air Relief
& Pressure Gauge
®
Suction
From Pool
Figure 9: Rotary Valve Positions
NOTE: If the starting pressure after backwashing the filter or cleaning the
elements indicates 8 to 10 psi higher than the original starting pressure
as defined in Table 4 on page 8, the filter elements must be manually
cleaned. Refer to Manually Cleaning the Filter Elements on page 10 for
instructions.
NOTE: Filter waste and diatomite are trapped by the heavy-duty double
lined Separation Tank bag. Contents are to be placed in a waste or trash
container, clean the bag and re-insert in the Separation Tank. DO NOT
LEAVE THE TANK BAG EXPOSED IN THE SUN. The manufacturer
cannot assume any responsibility for torn, or damaged bags, if left in the
sun to dry.
XF
® 4000-SERIES Grid Style D.E. Filter Installation and User' s Guide
FULLFLO
MAINTENANCE
To Waste
Filter
Position
Rotary
Valve
Backwash
Position
To Pool
9
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