Pavement Filtration For Onsite Rainwater Management
As a Sustainable Drainage System (SuDS), the d-Rain Joint™ is a simple, low-cost, and robust onsite storm water management alternative compared to other permeable, pervious surface options and can be used wherever a permeable, pervious driveway, parking lot, street or walkway is needed. The use of traditional pavement with the d-Rain Joint™ provides both permeability AND filtration at a lower installed cost!
As a Sustainable Drainage System (SuDS), the d-Rain Joint™ is a simple, low-cost, and robust onsite storm water management alternative compared to other permeable, pervious surface options and can be used wherever a permeable, pervious driveway, parking lot, street or walkway is needed. The use of traditional pavement with the d-Rain Joint™ provides both permeability AND filtration at a lower installed cost!
The d-Rain Joint™ system is a drainage channel composed of prefabricated devices permitting the collection and conveyance of water along its total length for impervious surfaces. These d-Rain Joint™ devices allow the use of traditional concrete, asphalt or other paver-type materials to construct a high-performing permeable, pervious surface system to put filtered rainwater in the underneath gravel detention area of the pavement; thus, increasing the usable surface, eliminating costly storm water infrastructure or potential pollution hazards to urban ecosystems.
Rainwater Filtration Device Products include:
- d-Rain Joint™ 6061-T6 (Aluminum)
- NEW! d-Rain Joint™ PPIC (Grey Plastic); introduced at STORMCON 2016 and WEFTEC! See a working demo unit in booth# 5438.
Easy to install like a standard expansion joint and virtually undetectable between concrete slabs, the ADA-compliant d-Rain Joint™ 6061-T6 (aluminum) and the new d-Rain Joint™ PPIC (flexible plastic) drainage channel system is less than 1” wide and available on 8’ lengths. The channel-inserted filter captures sediment to ensure continued effectiveness of the system at a maximum rate of 5 GPM/linear foot.
The product is highly durable and gives stormwater a path to a subsurface drainage bed. This provides an outlet for surface water to be directed to a drainage bed and collected and held or allowed to percolate back into the soil to conform to environmental conservation and protection requirements.
The d-Rain Joint™ PPIC Device is stackable to 4”, 6”, and 8” height pavements for patio installations to heavy traffic pavements.
Advantages of the d-Rain Joint™
- Cost-effective. Adds nominal costs to standard pour-in-place surfaces.
- Easy installation. Installs using standard practices and equipment.
- Low-maintenance. Simply clean or replace filter.
- Immediate storage capacity. With aggregate type/depth tailored for local needs.
- Strength and durability. Safe for heavy vehicles and snow removal.
- Treats stormwater onsite. Environmentally sound option to contain runoff onsite