BlueSeal, from Waterless Co., is a biodegradable barrier that prevents sewer vapors from escaping into the restroom atmosphere. BlueSeal is a liquid that works with the EcoTrap system found in all Waterless No-Flush Urinals. The liquid is poured into the EcoTrap to form a seal that prevents sewer vapors from being released into the restroom. The process is repeated once or twice a month, depending on use. Approximately three ounces of BlueSeal will protect a urinal for around 1,500 flushes.

Waterless Co., Vista, Calif.
Circle 258 on Reader Service Card or visit