Installation Guide

Compact Series U.S. Trench Drain Installation Instructions
Important: US Trench Drain should always be installed with the grate attached to the channel.
Installation is: Easy As l. Prepare 2. Install 3. Finish
l. Prepare Trench
Dig a trench of at least 5 1/2 " deep x 10" wide and place compacted bedding sand or concrete in the
base. Ideally the trench drain should be sloped at a grade of 1% to prevent water pooling along the
length of trench drain. Use a string line to ensure straightness and the correct finish height.
2. Install Channel
Connect US Trench Drain sections together using the easy male to female interlocking
system. It is recommended that you connect 3 lengths of US Trench Drain together with the grates
attached, before placing it into the trench. It is also recommended to cover the grates with masking tape
to prevent backfill falling into the trench or damaging the finish of your grate during the concreting
process. Connect a US Trench Drain End Cap to the highest point of your trench drain. To change
direction of your trench drain, use a US Trench Drain Corner Piece to change the direction to the left or
right, or to use a US Trench Drain Tee piece to change the direction to the left and right. It is also possible
to cut and join US Trench Drain in 8" increments using the US Trench Drain Convertor piece SKU 83701.
The convertor piece can also be used to connect male ends of the trench drain to an End Cap, End Multi
pipe Adaptor, Tee piece or the any of to join any of the cut ribbed sections at the bottom of the channel.
At the lower end of the trench drain, the trench drain can either be connected by using another end cap
or by using a Compact Series End Multi pipe adaptor SKU 83705 to connect to 2” & 3” Schedule 40
or ABS plain end plain, or 3” Corrugated pipe.
If you want to connect to the bottom outlet of the trench drain you can use a Compact Series Bottom
Multi pipe adaptor SKU 83356, by cutting out the inner circle collar of the channel and installing the
pipe adaptor to connect to 3” & 4” Schedule 40 plain end plain, 3” & 4” ABS plain end pipe, 4” Triple
wall solid or perforated pipe or 4” corrugated Solid or perforated pipe.
*DO NOT USE PVC GLUE*
3. Finish Installation
US Trench Drain expansion joint SKU 50006 or 50012 should be installed on both sides of the trench
drain along its whole length. Once you are ready to start laying your drain, position the trench drain into
the concrete slurry or compacted sand so that the feet of the trench drain are completely immersed. Our
unique design will prevent the need to stake the trench drain into place, as it will not float. The upper
edge of the strip should be level with the upper edge of the trench drain. This allows for the grates to be
removed once installed, should future cleaning be necessary.
With the US Trench Drain and grate in place, pour concrete along the outer walls of the trench drain to a
thickness of 2". Lightly compact and finish the concrete slightly above the surface level of the grate
(approximately 1/8"). This will promote runoff from the surrounding areas into the drain.
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Ph: 774 233 0005
US Trench Drain recommends using our Poly Adehsive sku 20095 when connecting to the PVC,
ABS or HDPE pipe to the channel outlets or the multi pipe adaptors.