The Model 1550 SRS scrubber/sweeper for airport-related spills and glycol recovery for recycling is available from Tennant Company. Designed to scrub off dirt, stains, and pills at the rate of 81,000-sq.ft. per hour. The SRS Solution Recycling System and large solution tank allow up to 10 hours of continuous scrubbing. Removes Skydrol, hydraulic fluid stains, storm water runoff, oil, and FOD; www.tennantfloorcoatings.com.