Installation Instructions
6
Retro-Fit Installations
1.) Cut the existing concrete slab and form a cavity which will enable a 4"
concrete pour below and around the Dead Level
®
system.
2.) Cut 2x4’s at least 30" in length to span the cavity. Align the 2x4’s with the
frame cross bars, and drill 1/2" holes corresponding to the tapped holes in
the cross bars.
3.) Insert an approx. 1/16" thick shim between the frame and the 2x4’s to
ensure the trench drain will sit below the nished grade. Attach the 2x4’s
to the cross bars with 3/8" x 4 1/2" (minimum) bolts and washers.
4.) Securely anchor the 2x4’s to the surrounding slab to prevent shifting or
oating during the pour.
5.) Once the concrete is set, remove the 2x4’s and complete any unnished
areas with concrete.
6.) Install the grates, lockdowns, and construction covers.
Non-Sloped Dead Level
®
S, Dead Level
®
SP, Dead Level
®
Z System Installation
Note: Systems installed above grade must be fully encased in a concrete
slab, and waterproofed to prevent leak-through. Please contact your
Watts representative for above grade installations.
1.) Dead Level
®
non-sloped systems are designed to be installed with the
frames attached to the channels; do not separate the channels from the
frames. All sections are the same depth, and can be installed in any
sequence without regard to the direction of ow.
End Cap
Standard Section
End Cap
Standard Section
Flow
Flow
FIG. H
Standard Section
Standard Section
End Cap
End Cap
Flow
Flow
FIG. I