Pentair Modular DE Filter PLDE48 - Manual (Page 9)

9
SYSTEM INSPECTION
General:
Wash the outside of the filter with a mild detergent and
water. Rinse off with a hose.
NOTICE: DO NOT use solvents to clean the filter; sol-
vents may damage plastic components in the system.
NOTICE: Open the air bleed valve and bleed all air from
the filter each time the pump is stopped and restarted.
Weekly Inspection:
1. Remove debris from the pool skimmer basket.
2. Stop the pump; open the air release valve to release all
pressure.
3. Remove the trap cover and basket; remove debris.
4. Check the pump for leaks. If found, see the pump
owner's manual.
5. Replace the trap basket and the cover. Tighten the
cover securely hand tight. DO NOT use a lid wrench
to tighten it.
6. Start the pump. When the filter air release valve runs a
solid stream of water, close the valve.
7. When the system has returned to normal operation,
check the filter pressure. If the filter pressure is 10 PSI
(69kPa) or more higher than the initial startup pres-
sure, the filter needs cleaning. See “Module Cleaning
Procedure”, Page 8.
WINTERIZING
Explosion hazard. Purging the system with
compressed air can cause components to
explode, with risk of severe injury or death to anyone
nearby. Use only a low pressure (below 5 PSI), high vol-
ume blower when air purging the pump, filter, or piping.
NOTICE: The filter outlet piping will not empty through
the filter drain. Make sure that the outlet piping has a sep-
arate drain for winterizing.
NOTICE: Protect the filter from freezing. Allowing the fil-
ter to freeze will damage it and will void the warranty.
1. Clean the filter according to instructions (Page 8) be-
fore winterizing.
2. Stop the pump.
3. Open the air release valve; open all the system valves.
4. Remove the drain plugs from the trap, pump, and filter.
5. Drain the system piping.
a. Gravity drain system as far as possible.
b. Protect areas which retain water with non-toxic
propylene glycol
antifreeze (“RV antifreeze”).
6. Loosen the union nuts (if used) to drain all water from
the filter interior. Leave these nuts loose until the sys-
tem is restarted.
7. Disassemble the filter (follow instructions under “Filter
Disassembly”, Pages 6 and 7). Remove the filter mod-
ule and store it in a warm, dry area.