Preset Type Drainage

Product Name: Drainer
Also known as: Retaining Wall Water Retainer 】
★ The product is divided into A and B types:
Type A: with fixed frame
Type B: without fixed frame


★ Design Highlights:

Pre-positioned Drainer is a professional improved type of Drainer, which can be firmly installed in the retaining wall, to improve the defects of traditional type of Drainer due to backfilling, which may loosen or fall off.

It can improve the defects of traditional type drainers which are loosened or dislodged due to backfilling.

★ Product Features:

Easier to fix PVC pipe



★ Type A Pre-Positioned Drainer includes a fixed frame to ensure the angle 

of inclination of the PVC drain pipe.


★ Type B pre-installed drain without fixing frame.

★ As the drain is buried in the retaining wall, 

it can be prevented from being knocked down by strange hands.


Different drains are used on the back side of the retaining wall to drain excess water and reduce pressure on the retaining layer to effectively stabilize the terrain and prevent scouring.