Easy to install, strong and money-saving alternative to aggregate drainage.
Our prefabricated strip filter drains provide a high-flow soil drainage system that offers better drainage than aggi pipe while costing around 60% less to install. These strip drains consist of a flexible HDPE or PVC double dimpled core, wrapped in a high quality nonwoven geotextile. The fabric allows water to pass into the core while restraining soil particles which might clog the core. The core’s 200kPa+ compressive strength resists high loads from in-fill and formwork. Its stud-shaped dimples provide an air chamber between the sheet and wall to rapidly channel water from grade to the footer drainage system. Strip drains are resistant to saline solutions, alkalis and acids.
Prefabricated strip filter drains are ideal for shotcreting applications. They provide vertical drainage behind bridge abutments, road tunnels, basement and retaining walls. High compression PVC cored strip filter drains are ideal for subsurface drainage along roadway edges. The open area for water collection in prefabricated drains is 65-80% vs 3-5% in perforated pipe. This allows for faster and higher volume water collection in below grade applications, making prefabricated strip drains a better and more efficient solution for sub-surface drainage.
Strip drains are also effective for removing standing water in many landscape applications such synthetic turf, natural turf, playgrounds and golf courses.
The 50m long rolls are available in 18mm, 25mm or 40mm profiles and 100mm, 200mm and 300mm wide.
| Core Properties | Units | 18 | 25 | 40 |
|---|---|---|---|---|
| Flow | l/min/m | 75 | 110 | 150 |
| Compressive Strength | kPa | >240 | >225 | >200 |
| Material | HDPE or PVC | |||
| Core profile | Cuspated on both sides | |||
| Roll Length | m | 50m | ||
| Roll Width | mm | 100/200/300 | ||
| Roll Height | mm | 18/25/40 | ||
Prefabricated strip filter drains offer many benefits:
- The combined installation and material cost is up to half that for aggregate drains.
- They are flexible, lightweight, easy-to-handle and quick to install. No heavy equipment or skilled labour is required.
- Their high flow capacity provides multiple channels for vertical and horizontal water flow. The filter geotextile allows a high volume of water into core while restraining soil particles.
- The 200pKa crush strength core resists damage during installation and greater soil depths. The high tear and puncture strength of the needle punched, spunbonded polyester geotextile insures no damage during backfilling or use.
- Easy visual inspection of material and installation is possible.
- The thin profile requires a much narrower trench than aggregate drainage.
- The uniform properties and quality materials deliver predictable drain performance.