SDX2 RETRO is an underwater suction drain cover system intended to replace any drain cover up to 10 inches
in diameter. SDX2 is approved for single or multiple drain use. When retrofitting a SDX2 to an existing instal-
lation with a single suction outlet that is not listed and approved for use as a single suction outlet one of the
following must be added in accordance with ANSI/APSP-7.
Excerpt ANSI/APSP-7 Appendix B options for single suction backup: One of these options must be
installed on any single suction outlet.
• Install additional ASME/ANSI A112.19.8 Outlet with the center to center distance between the suction
pipes at least 36-inches, or on a separate plane. (see Sections 4.5 & 4.6)
• Convert Suction Outlet to Return Inlet by Changing the piping, provided the system piping and skimmer(s)
shall be capable of handling the full system flow.
• Convert to Gravity Flow System in accordance with Section 5.8
• Engineered Vent System in accordance with Section 7.2
• Install & Test. Manufactured Safety Vacuum Release System (SVRS) Tested and Listed for the purpose by
a Nationally Recognized Testing Laboratory in accordance with Section 7.1.
• Permanently Disable the Single Outlet, provided the system piping and skimmer(s) shall be capable of
handling the full system flow and minimum turnover rates are achieved.
Installation
NOTICE
-
The pipe size must to appropriate for the maximum anticipated system flow rate per chart on
Page 7. Refer to the table on Page 6 for pipe sizes and orientations.
Your SDX2 RETRO includes five important com-
ponents; all of components 1-4 below must be
used for proper installation. These components
are as follows:
1. Drain cover
2. Black drain cover support plate
3. Six black plastic oval slot plugs that must
be installed in the drain cover support plate
after it is affixed to the pool or spa surface
4. Three 10x7/8 security screws to secure
drain cover to drain cover support plate, to-
gether with a tool for installing these screws
5. Assorted screws, fasteners, and plastic
spacers for attaching drain cover support
plate to pool or spa surface. See Installa-
tion Instructions to determine which com-
ponents you will need to use.
Installation Steps
1. Turn off all power to pool or spa and pump
systems. Installation is easiest when pool or
spa is drained.
CAUTION
- Draining a pool or spa may
cause structural damage. Before draining
contact your local licensed pool builder or
remodeler.
2. Remove existing drain cover (Fig. 1).
Fig. 1
!
USE ONLY PARAMOUNT GENUINE REPLACEMENT PARTS
8
USE ONLY PARAMOUNT GENUINE REPLACEMENT PARTS
