My new aerotec was inflated today and I noticed that when I took the pump hose out of the valves that inflate the side tubes the air rushed out until I tapped the valve head down and then it stopped. I'm sure I didn't lose much pressure but wondered if this was normal and whether there was anything I could do to prevent this from next time I inflate the boat?
They do this sometimes, make sure the inner part is properly and fully rotated in or out and as you did a small tap will reseat it. They will leak and hiss a little, the cap with rubber O ring is the final proper seal.