How much clearance should be left around the Smartscan sprayhead? Technical Support February 24, 2019 08:17 Related articles What do I do if Smartscan is beeping? Can you surface mount the Smartscan head? Whats the maximum number of Automist Smartscan Hydra heads that can be connected to a single pump? How to determine Automist Smartscan's suitability in BS 9991:2015 What precautions have been taken to prevent obstructions from blocking the spray? Comments 0 comments Please sign in to leave a comment.