What is the Legionella risk with Automist? Technical Support July 06, 2019 14:46 Updated Automist is dry pipe system, which is drained after commissioning and therefore mitigates the chances of legionella. Download our legionella risk assessment. Related articles Can I add battery backup? How much does the annual maintenance cost? Is Automist suitable for high rise retrofit? What is the role of the Automist Designer? What is the maximum ceiling heights that the Automist system can operate? Comments 0 comments Please sign in to leave a comment.