Jandy JS Series, Installation And Operation Manual

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Page 8
Figure 6. Sweep Elbow
Note: Do not
overtighten.
JS Series Sidemount Sand Filters
Figure 5. Sand Filter Plumbing for Pool/Spa Combination
Jandy Heater
Waterfall
Pool Return
Spa Make Up
Spa Return
From Pool Skimmer
Spa Suction
Jandy Pump
Jandy
Check
Valve
From Pool
Drain
Jandy Filter
Backwash
Valve
Waste
Sweep
Elbow
c. Be sure there is sufficient distance between
the center of the pump outlet port and the
backwash valve inlet port to accommodate
the sweep elbow(s). See Figure 5 for
recommended installation configuration.
NOTE Be sure to use 2" or 2½" schedule 40 PVC pipe.
d. Clean the cut ends of the pipe and both ends
of the sweep elbow(s) with an appropriate
NSF
®
approved All Purpose cleaner/primer.
Glue the sweep elbow(s) onto the cut pipe
ends using an appropriate All Purpose NSF
approved adhesive/glue.
NOTE Zodiac recommends Weld-On ® 724 PVC to
CPVC Cement to glue Schedule 40 CPVC to
PVC.
10. Make all plumbing connections in accordance
with local plumbing and building codes. Filter
connections are provided with an o-ring seal. To
avoid damage to the o-rings, use only a silicone
base lubricant on the o-rings. Do not use pipe joint
compound, glue or solvent on inlet/outlet union
coupling nuts.
11. Keep piping tight and free of leaks. Pump suction
line leaks may cause air to be entrapped in filter
tank or loss of prime at the pump. Pump discharge
line leaks may show up as dampness or jets of
water.
12. Support the inlet/outlet pipes independently to
prevent any undue strains on the filter valve.
13. Connect the pipes using the unions supplied with
the filter. Do not use Te fl on ® tape or pipe dope
on any unions. Assemble the unions dry and hand
tighten. See Figure 7.
14. Any piping with a ball valve that may be
connected to the water drain at the bottom of the
filter tank must be removable to facilitate the
further removal of drain components to allow
space for the flushing of sand from the filter. See
Figure 7 for water drain cap location.
15. A large fitting is provided at the tank drain to
allow the flushing of sand from the filter tank. See
Figure 8. Sand removal is easiest without further
restriction at this fitting. If a short piece of piping
is desired to direct the sand being flushed away
from the filter base, a universal tailpiece can be
used for this purpose. Use this tailpiece to connect
piping with the universal union nut as shown in
Figure 9.