HygieneFirst philosophy applying design principles reserved for food equipment HygieneFirst philosophy our Commitment to ultimate hygienic performance ACO designs solutions with cost efficiency in mind but with absolutely no compromise in terms of food safety. Drainage systems are a particularly important niche for the persistence of listeria and can be a source of food contamination. Yet drainage is often out of sight and therefore out of mind. Poorly specified drainage leads to costly ongoing cleaning and maintenance and at worst it can result in food contamination. ACO addresses the hygienic performance of floor drains and applies the design principles reserved for food contact equipment on them to deliver fully hygienic solutions. Our complete portfolio allows us to safely control water as it passes along the system to ensure it can be ecologically and economically reused in a viable way. WHY DRAINAGE MATTERS?