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EXPOL QuickDrain and EXPOL StyroDrain are two unique drainage products manufactured by EXPOL. They can be used separately or in combination to deliver the ultimate solution for economic removal of excess ground water. EXPOL QuickDrain and EXPOL StyroDrain are used in residential and commercial non- traffic applications including: retaining walls, water logged backyards and perimeter drainage around houses and sections.

EXPOL StyroDrain is made from 100% recycled polystyrene and EXPOL QuickDrain the no scoria drainage solution replaces the use of scoria and includes recycled content.

EXPOL QuickDrain and StyroDrain System working together to deliver a Retaining Wall Drainage Solution.

EXPOL New Generation - Superior Performance

EXPOL Performance that meets & exceeds the new insulation standards

EXPOL QuickDrain - The no scoria drainage solution

EXPOL StyroDrain Sheets

EXPOL StyroDrain made of 100% Recycled Content

EXPOL QuickDrain includes recycled content and can be easily recycled.

EXPOL StyroDrain includes recycled content and can be easily recycled.

EXPOL QuickDrain has been tested by WSP OPUS International Consultants Ltd.

All products and grades of Expanded Polystyrene EXPOL supplies for retaining wall solutions comply with manufacturing standard AS 1366 Part 3 1992.

The Products

EXPOL QuickDrain is a cost-effective no scoria drainage solution that cut installation time in half. It incorporates recycled polystyrene aggregate and provides enhanced drainage performance, strength, filtration, and longevity.
Visit EXPOL QuickDrain   

EXPOL StyroDrain is made from 100% recycled polystyrene and is used to protect the waterproof membrane on retaining walls whilst providing the ultimate drainage solution.
Visit EXPOL StyroDrain   

Installation Instructions

EXPOL QuickDrain

QuickDrain comes in easy-to-handle 2.5 metre lengths. Each length comes with a QuickDrain Joiner and cable tie.Dig your trench the same width as your QuickDrain and deep enough to allow a minimum of 200mm of soil coverage. Simply clip the length together to achieve the required length for your project. Once the QuickDrain has been laid in the trench you are ready to start covering the QuickDrain.

EXPOL StyroDrain

EXPOL makes drainage easy.  To ensure you get the best result, follow these simple steps.

Place EXPOL StyroDrain polystyrene sheets hard up against the retaining wall after the water proofing membrane or tanking has been applied. Use EXPOL StyroFix to secure the sheets in place while backfilling.

If your wall is 1.8 metres or higher it is recommended that two layers be used to maximise drainange.

Place the sheets of EXPOL StyroDrain on top of a 100mm perforated drain.  Ensure the perforated drain is surrounded by drainage gravel and situated at the base of the retaining wall. On high reach retaining walls, it may be necessary to use a double thickness along the base of the wall to allow for increased compression and better drainage.

EXPOL StyroDrain should cover all of the waterproofing membrane and tanking areas. Sheets should not be exposed at the top of the wall.

EXPOL StyroDrain


EXPOL Installation Components

EXPOL supplies joiners to connect one length of QuickDrain to another. EXPOL’s range of available components is listed here:

Y Joiner

Where you need to change direction and join one length of QuickDrain with two you can use a Y joiner.

Available from local hardware stores.

Straight Joiner

1 x straight joiner comes with every length of QuickDrain.



Download Drainage Solutions Brochure


EXPOL products are available at a number of leading building products stores. Find your nearest stockist here.

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