Pentair D.E. Cartridge Style Filter Quad D.E. - Manual (Page 15)

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Quad D.E. ® Filter Installation and User’s Guide
Section 5
Maintenance
Cleaning the Quad D.E. ® Filter Manually
1. Turn the pump off, shut off any automatic controls to ensure that the system is not inadvertently started
during servicing.
2. Automatic skimmer should have Vari-Flo trimmer valve set to 100% skimmer. This will close off the main drain
line. If there is a separate skimmer line and main drain line plumbed to the pump, close the main drain valve.
3. Open the filter High Flow™ manual air relief valve, and the waste drain valve or plug if your system has
one. Disconnect air relief valve drain hose if installed.
4. Remove the pump’s hair and lint strainer pot lid and clean the basket. Replace basket and secure lid. Follow
the instructions provided with your pump.
5. Never attempt to assemble, disassemble or adjust the filter clamp while there is pressure in the
filter. Release the tank clamp assembly and remove tank lid.
6. Ensure the internal air bleed assembly is in place and free of diatomite or debris, see page 12 , CLEANING
THE INTERNAL AIR BLEED TUBE.
7. Remove top manifold and cartridge style elements separately.
8. Using a garden hose without a nozzle, direct water spray at cartridge style elements to dislodge and wash
away accumulated foreign matter. Flush each cartridge inside and out.
WARNING — Please heed all manufacturers' posted instructions, warnings and cautions when using Baquacil ® or
Baqua Clean ® .
NOTE
Special care must be taken when cleaning filter cartridge style elements used in a swimming pool or spa using Baquacil ® as a sanitizer. Because
of the way Baquacil ® works, the filter element must be cleaned more thoroughly and more frequently than in a chlorine system. If extreme care
is not taken to completely remove all residue from the filter media a buildup will occur. This buildup will significantly shorten the life of the filter
element.
Baquacil ® is a mild coagulant which combines bacterial cells as well as other small particles contributed by the environment, bathers, etc. into
particles large enough to be trapped by the filter. In comparison with all other trapped contaminants in a typical pool or spa the amount of bacterial
cells that are deposited on the filter is minimal. The resulting deposit is a gray sticky film which can only be removed with Baqua Clean
® . If TSP
or any TSP-type cleaner is used prior to stripping the film, the cleaner and the gray film will combine to form a gum-like substance. Once this
occurs, the substance cannot be removed from the media and the filter cartridge must be replaced.
9. Lift bottom manifold out of the tank and flush off any debris.
10. Direct water spray to wash out the inside of the tank body. Water and debris will drain out through the open
drain port.
11. Check gasket around outer lip of bottom plate. Gasket must be firmly and evenly set in place. Do not use
petroleum base lubricants to avoid damage to the gasket.
12. Place bottom manifold, 4 cartridge style elements, top manifold and air relief tube in place. Make sure the
spring and standpipe assembly are retained on the top manifold. Ensure the air relief tube stays in an upright
position. This is essential for the maximum air removal from inside the tank.
13. Be certain the o-ring is in position in the lower tank half. Press the filter lid over the lower tank half and
sandwich the o-ring in between.
14. Replace tank top and carefully follow instructions on page 6 , CLAMP INSTALLATION INSTRUCTIONS.
15. Replace drain plug and reinstall air relief valve drain hose if used.