Installation Guide

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CONCRETE INSTALLATION INSTRUCTIONS
6
4.
Align the drain cover support plate over
the ring or sump
(Fig. 6)
. If pipe cannot
be centered under plate then a 1” deep
sump will give optimum water flow to the
pump. If the pipe can be relatively
centered NO SUMP is required.
(Fig. 7a)
.
Note: Suction Safety Standards require that
main drain grates used to cover concrete
sumps, must have the suction pipe cut at least
1 ½ times the pipe diameter behind the drain
cover. This is to allow room for even water flow
through all drain cover holes. This is not
necessary with the SDX drain because the
Patented design provides uniform suction
regardless of pipe location. However, if the pipe
is too close to the surface and off center, this
may restrict water flow to the pump, reducing
hydraulic efficiency, but this does not pose a
suction safety hazard.
5.
Attach the drain cover support plate to the
pool or spa surface with the appropriate
screws, fasteners, and spacers as
described in 3 on Pg 4
(Fig. 8 or 9 -- see
Pg 6)
. Completely hand tighten screws.
Do not use power tools.
ONCE INSTALLED, BE SURE THAT THE
DRAIN COVER SUPPORT PLATE IS
FIRMLY IN PLACE AND CANNOT BE
PULLED OUT OF THE POOL OR SPA
SURFACE. IF THE DRAIN COVER
SUPPORT PLATE IS NOT FIRMLY IN
PLACE, RE-READ THESE
INSTRUCTIONS AND TRY ANOTHER
INSTALLATION METHOD (PERHAPS 3E
ABOVE) (FIG. 5).
WARNING: FAILURE TO SECURELY
FASTEN BLACK SUPPORT PLATE CAN
RESULT IN INJURY OR DEATH.
Fig. 5: Ring without Usable Screw Insert
Fig. 6: Support Plate
If pipe cannot be centered under plate then
a 1” deep sump will give optimum water flow
to the pump. If the pipe can be relatively
centered NO SUMP is required.
Fig. 7: Support Plate Aligned Over Screw Holes
1”
Fig 7a: SDX over suction outlet with no sump