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The top of the pipe is sloped downward, which allows for a thicker concrete floor that better disperses weight and reduces cracking.
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The rear angle leaves space for non-removable dirt or debris that rests against the wall.
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The 4” flange extends up the wall, acting as a built-in diverter. This flange helps direct water down from the weep holes into the pipe and away from the foundation.
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The angle at the top of the flange keeps the drain off the wall and helps water flow freely into the pipe.
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This notched ridge helps keep the drain off the wall and water flowing freely into the pipe.
TopDrain is a revolutionary on-footer French drain system for interior basement waterproofing.
Its rear angle leaves space for non-removable dirt or debris that rests against the wall. Because of this, the pipe can still be placed against the wall.
The top of the pipe is sloped downward, which creates a thicker concrete floor that better disperses weight and reduces cracking.
TopDrain features a 4” flange that extends up the wall, acting as a built-in diverter. This flange helps direct water down from the weep holes into the pipe and away from the foundation.
Both the angle at the top of the flange and the notched ridge below keep the drain away from the wall just enough to let water flow freely into the pipe.
TopDrain is sold in 8′ sections. Connectors, 90º Inside and Outside Corners, Clean-Out Corners, and Basin Inlets are also available.
TopDrain Resources
TopDrain Sales Flyer
TopDrain Overview Video