Looking after drains is one of the most important, pre-emptive actions businesses storing hydrocarbons can take. These simple but effective guards prevent sediment entering the storm water system and they’re good for around 3-6 months. (If there are heavy sediment loads, it might be less than that. It’s best to check regularly.) Easy to install and remove, the self-supporting unit sits out of sight below the drain grate. The oil absorbent media inside ensures that small hydrocarbons spills are captured before they reach the storm water system.