MARINE "The boat's head isn't a source of complaint because of odor anymore. The combination of Vacu-Flush and Eco Tank Pro™ leaves NO odor in the SeaRay...not just perfume."- Chris P. "Since using Eco Tank Pro™, when guests board my boat they always comment that there is no "bad odor"." -Roy J. "The head doesn’t smell – at all. We have two full heads (toilets), with a single holding tank, and a holding tank for gray water. The outflow is liquefied, and neither tank smell s. Eco Tank Pro™ works! "– Gary T. "Our 46-foot sailboat has two heads with one holding tank. After the first month the Eco Tank Pro™ and two long race weekends, there’s no stink in the heads." - Ted O. "The head and holding tank on the club’s committee boat is heavily used, and had gotten smelly despite regular service. Eco Tank Pro™ has eliminated the smell."– Mike D.