Pentair Modular DE Filter PLDE48 - Manual (Page 8)

MODULE CLEANING PRO-
CEDURE
Risk of chemical burns. Do not attempt to
acid clean the filter or module. If the filter re-
quires acid cleaning, have a trained pool professional do the
job.
Follow all steps in the “Disassembly” section of this manual.
The filter module should be removed and cleaned when
pressure rises more than 10 psi (69 kPa) above startup
pressure. See also “When to Clean the Filter,” below.
NOTICE: Do not expose the filter module to sunlight for
any extended period of time.
NOTICE: When sanitizing your pool using PHMB (poly-
hexamethylene biquanide based) cleaners, use
only
PHMB cleaners to clean the module. When using PHMB
sanitizers, the filter module MUST be cleaned more thor-
oughly and frequently than for a pool using chlorine.
Follow manufacturer’s instructions carefully. Use of any
other type of cleansers with PHMB pool sanitizers will
void the filter’s warranty.
NOTICE: Avoid washing filter debris into the outlet port.
Remove drain plug and flush foreign material from inside
of tank before removing filter module.
1. With a hose equipped with a soft flow nozzle, wash as
much dirt as possible off of the filter module while it is
still inside the tank. Allow tank to drain completely.
2. Make sure that the inside of the tank is clean. Lift out
the module and hose it down thoroughly. Spray the en-
tire module surface. Allow module to drain.
3. Inspect the module. If necessary, repeat the washing
operation. If the module is damaged, replace it.
NOTICE: If this cleaning method does not remove all
deposits, see “Special Cleaning Instructions” section in
this manual.
4. Inspect and clean air bleed filter at top of module.
5. Follow all steps in the “Assembly” and “Initial Startup”
sections of this manual.
Special Cleaning Instructions:
Use this procedure to clean scale or oils which are not re-
moved by hosing down module. Be sure to dispose of
spent chemicals according to all applicable codes and
waste disposal ordinances. Use a soft stream nozzle to
minimize flying water and spray.
Risk of fire or explosion. Isolate filter from
system before chemical cleaning; rinse filter
and elements completely before returning to service. If
filter cannot be isolated, remove media and clean at an-
other location. Follow chemical manufacturer’s instruc-
tions for use. Do not mix chemicals except as directed by
manufacturer. Do not allow cleaning chemicals to mix
with or to come in contact with chlorine, bromines, other
chemicals, or chemical feed devices.
1. Sponge or spray the module according to chemical
manufacturer’s directions.
2. If soaking is required, remove the module from the fil-
ter tank and submerge it in a separate tank. Follow
cleaner manufacturer’s instructions carefully.
3. After completing chemical manufacturer’s instructions,
drain and rinse the module completely. Dispose of
cleaners in accordance with local codes and disposal
ordinances.
4. Rinse the inside of the filter tank. Drain it completely.
5. Follow instructions in the “Assembly” and “Initial
Startup” sections of this manual.
8
Recommended Specialty Filter Cleaners
Filter Cleanse™, Great Lakes Biochemical
BIOGUARD Strip Kwik™, BIOGUARD KleenIt™,
Softswim
® Filter Cleaner,** BIOLABS, Inc.
Filter Kleen™, Haviland Products Co.
BAQUA CLEAN™, ** Zeneca, Inc.
** MUST be used when using any PHMB
based sanitizer.
When to Clean the Filter
The filter module should normally be cleaned when the pressure
gauge reading increases 10 PSI over the start-up pressure (record
the start-up pressure under “Owner’s Information”, Page 3).
In some pools, accessories such as fountains or pool cleaners may
be noticeably affected by the normal decrease in flow as the filter
becomes dirty. If so, clean the filter more frequently (that is, at a
pressure increase of less than 10 PSI) in order to maintain the re-
quired flow.