INSTALLATION
Installation of filter should only be done by qualified, li-
censed personnel.
Filter Assembly
Filter mount must:
• Be solid, level, rigid, vibration free, and provide for ad-
equate drainage.
• Be as close to pool as possible to reduce pressure
loss from pipe friction.
• Provide weather and freezing protection.
• Provide adequate ventilation to prevent motor from
overheating.
• Provide space and lighting for easy access for servic-
ing pump and piping (See Figure 1, Page 4, for space
requirements).
Piping
(See Figure 1B for correct connections)
NOTICE: Make sure that the filter and all piping can be
drained for winterizing. See "Winterizing", Page 9.
• Piping must conform to local/state plumbing and sani-
tary codes.
• Use teflon tape, Plasto-Joint Stik
all male connections of plastic pipe and fittings. DO
NOT use pipe compounds on plastic pipe; it will cause
the pipe to crack. Do not use sealant on unions – as-
semble them dry and hand tight.
• Support pipe independently to prevent strains on filter.
• Fittings restrict flow; for best efficiency use fewest pos-
sible fittings.
• For ease of maintenance, Sta-Rite union couplings are
provided to connect the piping to the filter inlet and
outlet ports.
• Keep piping tight and free of leaks: pump suction line
leaks may cause trapped air in filter tank or loss of
prime at pump; pump discharge line leaks may show
up as dampness or jets of water.
• NOTICE: Overtightening can crack filter ports.
Valves:
• A check valve installed ahead of filter inlet will prevent
contaminants from draining back into pool.
• A check valve installed between filter and heater will
prevent hot water from backing up into filter and de-
forming internal components.
• For installation allowing backwashing, install Sta-Rite
Two Position Slide Valve or Multiport Selector Valve
with filter. See Table 3. If you intend to clean your filter
according to "Module Cleaning Procedure", Page 7,
no slide or multi-port valve is required. See Figure 1B,
Page 4, for correct water flow when connecting pipe.
• Filter ports and valve ports are furnished with union
connections. DO NOT use pipe sealants on union col-
lar (nut).
• Use care before assembly not to damage union seal-
ing surfaces or O-Ring.
®
Plasto-Joint Stik
is a registered trademark of La-Co Industries, Inc. and Silastic 732
:
®
®
, or Silastic 732
on
5
• To allow recirculation during precoat (if precoat pot is
used), install a recirculation line with shut-off between
pad return line and pump suction.
Electrical:
• BE SURE filter grounding and bonding meets local
and National Electrical Code standards. All wiring,
grounding and bonding of associated equipment must
meet local and National Electrical Code Standards.
TABLE 3 - Sta-Rite valves for use with Model PLDE36
and PLDE48 filters
Port
Multi-port Valve
Size
Part Number
2"
18201-0300
NOTICE: Use of valves other than those listed above
could cause reversed water flow through filters and
damage to internal filter components.
INITIAL START-UP
Be sure pump is OFF
before starting procedure.
Do not operate these filters at more than 50 PSI
(345 kPa) under any circumstances!
To prevent serious damage to the element
fabric, NEVER run your DE filter without a diatoma-
ceous earth precoat!
1. Securely lock Posi-Lok™ ring in place by rotating ring
CLOCKWISE until it "clicks" past the safety latch (see
Figure 3). Stop turning as soon as the ring clicks past
the latch. The ring may feel slightly loose, but it will
tighten up when pump is on and filter is under pres-
sure.
2. Fill trap on pump with water.
Tab
Latch
Figure 3 – Rotate Posi-Lok™ Ring until tab locks
behind the safety latch.
3. Open air release valve on top of filter.
4. Open isolation valves.
5. Start pump to purge air from system.
®
is a registered trademark of Dow Corning Corp.
Plastic Slide Valve
Part Number
14935-0300
2149 1195