There are a number of UltraTech stormwater management products for standard storm drains. A smaller number of combination drains but still a fair amount. So when we were challenged by a customer for a solution to keep residual fuel from being washed down their trench drains, we were surprised that there wasn't something already available. The challenge with most trench drains is their shape long, narrow and shallow. That combination makes typical drain solutions impractical. With the Ultra-Trench Filter Boom, we move the filtering solution above the drain and actually treat the water before it even reaches the drain. Using X-Tex material, hydrocarbons are quickly removed and captured from the stormwater flow, allowing only clean rainwater to flow into the trench drain.