I suspect that product is Dawn dish soap. A true story: My sis was having a huge flea problem out in Oregon. The epidemic of the little buggers were driving her dogs nuts. She'd tried everthing but then one day she noticed a fly land on a bubble of her dish water as she was doing dishes and then watched as the fly froze. Turned out he'd just encountered instant death, aka Dawn antiebacterial dish soap and was dead instantly, on the spot where he landed.. She immediately filled her law sprayer with dawn and water and sprayed her lawn and voila--no more flea problems. Wonder what it would do to whirling disease or didymo?