Page 15
Jandy
®
Commercial Horizontal Sand Filter | Installation & Operation Manual
ENGLISH
WARNING
Follow all filter manufacturer's instructions. NEVER
attempt to assemble, disassemble or adjust the filter
when there is pressurized air in the system. Starting the
pump while there is any pressurized air in the system can cause the
filter lid to be blown off, which may cause death, serious personal
injury or property damage.
5.1 General Maintenance
• The outside of the filter can be cleaned with a mild
detergent and water. Rinse with water.
• Do not use strong cleansers or solvents to
clean the filter, solvents will damage the plastic
components of the filter.
• Check pressure during operation at least once a
week.
• Check for and remove any debris from the
skimmer basket and strainer basket on pump
regularly.
• Check pump and filter for any leaks. If any leaks
develop, turn off the pump and call a qualified
pool service technician.
• Product safety signs or labels should be
periodically inspected and cleaned by the product
user as necessary to maintain good legibility from
a safe viewing distance.
• Product safety signs or labels should be replaced
by the product user when a person with normal
vision, including corrected vision, is no longer able
to read the safety signs or label message panel
text at a safe viewing distance from the hazard.
• In cases where the product has an extensive
expected life or is exposed to extreme conditions,
the product user should contact either the product
manufacturer or some other source to determine
means for obtaining replacement signs or labels.
• Installation of new replacement safety signs or
labels should be in accordance with the sign or
label manufacturer’s recommended procedure.
5.2 Daily Maintenance
• Check and record the influent and effluent
pressure gauge readings and system flow.
• Record these daily readings for trending
purposes.
NOTE:
Periodically open external air vent of each filter to
ensure removal of entrapped air.
5.3 Annual Maintenance
Perform an annual inspection of the filter media to
check for contamination.
• Dig into the media bed.
• Look for contamination such as dirt and other
debris that has not backwashed out of the
media bed, or calcium deposits, or hair and/
or other matted material accumulated in the
media bed.
• Using your hand, dig down into the media to
a depth of 4 to 6 inches.
• Perform this inspection for the center and
along the sidewall of the tank.
• The media must be loose without the
presence of mud, calcium, or contaminant
binding.
• If media is contaminated, replace it.
• Improper backwash and/or improper water
chemical balance may be causing these
conditions.
• Take corrective action to remedy the problem.
5.4 Backwashing
The filter system should be backwashed when the
influent and effluent pressure gauge differential
reaches 15 P.S.I.G. (103 kPa).
• Backwash until water is noticeably clearer as
shown in the backwash sight glass.
• Average backwash duration is 3 to 4½ minutes.
• Follow the outlined steps for any remaining
sequenced filters (see Section 4, 4.6).
NOTE:
Filter and backwash procedures may have to be
performed several times during the first few days
of operation depending on the source of water
and its clarity.
