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Polypropylene Drainwell Soakwells
Drainwell Plastic Soakwells are supplied in a flat-pack kit form, hence the term DIY soakwells. Plastic Soakwells consist of panels which are simply clipped together by hand. The plastic stormwater crates are lightweight. Furthermore, soakaway crates do not require a concrete paving slab or concrete soakwell lid above them.
Our quick guide below will show you how to install polypropylene soakwells.
How to install Plastic Soakwells
- Dig a hole to the size required.
- Level the base of the pit and compact.
- Backfill the pit with approx 100mm of coarse sand, and compact.
- Line the base and walls of the pit with Geotextile, ensuring the seams have a minimum 200mm overlap. Seal the joints with adhesive PVC tape. Allow sufficient Geotextile length to cover the surface of the Drainwell modules once positioned in pit.
- Once assembled, place Drainwell modules into position, on top of the Geotextile, inside the pit. Furthermore, ensure modules are placed with 440mm side in the upright position.
- If required, secure Drainwell modules together with clips or heavy duty cable ties.
- Cut holes in the correct position for inlet and outlet pipes. The outlet would usually be positioned lower than inlet.
- Tightly cover the sides and top of modules with Geotextile. Ensure overlaps and inlet/outlet areas are sealed with adhesive PVC tape.
- Backfill around the sides and top of the modules with a minimum of 100mm clean coarse sand and compact according to engineers specifications.
- Finally, backfill a minimum 600mm of clean fill on top of the modules and compact according to engineers specifications.
