FAQs
How much metal does it remove?
Our systems can remove over 90% of zinc and copper from roof runoff. Specific removal depends on a number of factors including the age of the roof, the roof type, climatic conditions, and others.
Which system is best for my region?
For smaller roof areas we recommend the StorminatorTM Lite. The % of treated roof runoff is shown below for an average rainfall year per region:
|
StorminatorTM Lite Treated Roof area (m2) |
Christchurch | Wellington | Auckland |
| 50 | 100% | 98.4% | 97.5% |
| 100 | 100% | 94.1% | 91.9% |
| 150 | 99.9% | 89.2% | 86.9% |
*For 5 minute interval rainfall for 2021 - data from NIWA.
For roofs larger than 150 m2, we recommend the StorminatorTM Barrel. The % of treated roof runoff is shown below for an average rainfall year per region:
|
StorminatorTM Barrel Treated Roof area (m2) |
Christchurch | Wellington | Auckland |
| 250 | 100% | 99.9% | 99.5% |
| 500 | 100% | 98.3% | 97.3% |
| 750 | 100% | 96.1% | 94.4% |
*For 5 minute interval rainfall for 2021 - data from NIWA.
How have you tested your systems?
The StorminatorTM technology has been extensively tested and internationally peer reviewed through scientific publications. The design has been optimized for simple implementation to ease the pain of meeting regulatory requirements.
Is this technology recognized by regulators?
The StorminatorTM is on the Christchurch City Council's list of approve stormwater treatment solutions. Environment Canterbury were an early supporter of the technology for the removal of dissolved metals.
How is it installed and what are the maintenance requirements?
Installation and maintenance procedures are provided in PDFs for each system. The recommended maintenance procedures include keeping the leaf diverters clean of debris and emptying the sediment sock when required. The media has an expected life of 3 year of full performance on an average roof.