Protecting the environment is the main purpose of Retain Drain. The Retain Drain removes common contaminants such as; copper, zinc, hydrocarbons and organic debris from the Stormwater creating cleaner waterways reducing your local as well as global carbon footprint. And in turn decreases long term maintenance cost.
If you can no longer see the stainless-steel perforated grate or If it is holding water it needs to be cleared.
Dirty filters can go directly into your trash receptacle. They are not considered hazardous waste.
The filter no longer has useful life if you cannot see green. This also, can vary depending on the region, precipitation, and contamination.
With a couple simple tools, Assembly of Retain Drain, takes 5-10 minutes. Installation can be completed within minutes.