SECTION 3. Installation Instructions
5
Figure 3. Basic Pool/Spa Combination Plumbing
c. Orient the gauge/air release assembly in the
desired position. Raise and thread the locknut onto
the bottom of the gauge/air release assembly. Hand
tighten the nut only. Using a wrench to tighten the nut
may damage the nut, gauge or air release assembly.
5. To reduce pressure losses, 2" (minimum) piping is
recommended for plumbing the system.
6. For best efficiency use the fewest possible number of
fittings. This will prevent a restriction in the water flow.
7. 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 coupling nuts.
8. 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.
9. Support the inlet/outlet pipes independently to
prevent any undue strains on the filter MPV.
10. Connect the pipes using the unions supplied with
the MPV. Do not use teflon tape or pipe dope on any
unions. Assemble the unions dry and hand tighten.
11. Be sure that all provisions for waste water disposal
meet local, state or national codes. One hundred
gallons or more of pool water will be discharged during
filter backwashing. Do not discharge water where it
will cause flooding or damage.
Laars Heater
Waterfall
Spa Return
Pool Return
Spa Make Up
Jandy
Check
Valve
Outlet Port
Inlet
Port
Jandy
Filter
Jandy Pump
From Pool Drain
(Optional)
From Pool Skimmer
Spa Suction
Figure 4. Filter Location
Housing
O-Ring
O-Ring
Tank Adapter
Tank Adapter to Housing
Coupler
