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35
PLUMBING
Best types of plumbing to use is either rigid or flexible PVC schedule 40. Flexible PVC pipe is
available from royalswimmingpools.com. It is recommended to use rigid PVC for all out-of-the-
ground-plumbing at the equipment pad for a more professional appearance. Rigid sch 40 PVC
pipe is available from any hardware store.
Before starting, coat the concrete footings with about 2"of clean
sand or dirt to cushion the plumbing. Start plumbing at the back
of the inlet fitting. Apply Teflon tape or Permatex #2 to a 1½"
male adapter thread and thread it in the back of the inlet fitting.
Hand tighten the male adapter, and then finish tightening with a
wrench. If no threads are in the return, glue the pipe in the
return. Plumb out of the inlet and down to the footing as shown
in the diagram. Plumb the other inlet fitting in the same manner.
Use 1½ '' T-couplings to join the return inlet pipes. At the approximate midpoint between the
inlet fittings, put a 1½" tee fitting and continue plumbing to the equipment pad. This will allow
for equal water pressure at each return fitting. Plumbing the skimmer follows the same
procedure as the returns using 1½"or 2'' PVC. Plumb the main drain line to the equipment pad.
Before the final filling of the pool with water, all of the plumbing to the equipment pad should
be completed to a level at least as high as the top of the pool wall to prevent water from
overflowing through the pipes when filling the pool. A separate 1½" PVC line should be ran to
the equipment
pad for the
Polaris auto-
cleaner. A
separate 2" PVC
line should also
be ran to the
equipment pad
for spa jetted
steps or spa
jetted swim
outs.
TIP
Return inlet lights (such as the Hayward 320)
requires 6”
-
12” of straight pi
pe from the
adaptor to the elbow, debating on the light model.