Introduction
Thank you for choosing Atlantic's Stainless Steel and/or Copper Finish Spillways. Constructed
of stainless steel, Copper Finish Spillways have an additional antique copper plating over the
stainless steel for a warm traditional look.
Atlantic 304 Spillways are constructed of 304 stainless steel and are intended for fresh
water use only.
Atlantic's 316 Stainless Steel Spillways are designed specifically to be corrosion resistant
in chlorinated pool water, salt water and acidic environments. All 316 Stainless Steel Spillways
include a 1/ 4 " bonding lug for grounded pool applications.
ATTENTION
316 stainless steel withstands corrosion when immersed in swimming pool water because the
chlorine concentration is typically mild (1 – 5 ppm). However, the areas above the waterline that
get splashed frequently are extremely susceptible to corrosion. As the water that splashes on
the stainless steel evaporates, the chlorine left behind becomes highly concentrated. These
deposits are very corrosive and will discolor, rust, pit, and corrode stainless steel regardless of
grade if not maintained properly. 316 Spillways used in swimming pool installations should be
rinsed regularly with fresh water to remove accumulated chlorine deposits.
Installation Requirements
• 304 Spillways are designed for use in fresh water Pond-free and Formal Spillway applications.
316 Spillways are specifically designed for use in chlorinated and salt water pool and spa
environments. Spillways are not intended for use in water gardens, ponds or any other
installation with plant or aquatic life.
• Atlantic Spillways can support 80lbs. per linear foot of evenly distributed weight over
the top of the Spillway. (Ex. A 24" Spillway can support 160 lbs.) If the weight of the wall
stone and caps above the Spillway exceeds the recommended weight limits a lintel must
be installed above the Spillway to carry the excess load.
• Atlantic Spillway are designed to easily install in dry stack garden walls utilizing a standard
4"H x 8"W x 12"L wall block. Although any size wall block can be used, a 4 x 8 x 12 is ideal as
it requires very little alteration when installing the Spillway.
Spillway
SS12 / CS12 / SS12-316
SS24 / CS24 / SS24-316
SS36 / CS36 / SS36-316
Installation
The opening in the wall where the Spillway will be placed is important to the function of the
Spillway. The bottom of the Spillway must sit on a flat surface and be fully supported for its
entire length. The Spillway must be level side to side and front to back to for proper water flow.
Installation in a garden wall using 4"H x 8"W x 12"L garden stones is easy because the Spillway
is also 4" tall. Simply remove the necessary number of wall stones (one, two or three) from
the top course of the garden wall and replace them with the Spillway. The Spillway should be
positioned so that the front of the body is even with the front of the wall, leaving lip projecting
41/ 2 ". Cut 4" x 4" x 12" filler blocks to complete the wall course if needed to fill the area behind
the Spillway, leaving a 21/ 2 " wide opening in the center to connect the supply line. The Spillway
is load bearing (80 lbs. per linear foot max) so caps can be placed on top of the Spillway to
complete the installation.
2
Stainless steel can corrode if not maintained properly.
Maximum Falls Height Above Basin
24"
30"
36"
Flow Rate
1200 GPH
2400 GPH
3600 GPH