Djchon661 Make sure to use the inflation guide (little plastic ruler) until you get to know the inflation of the boat. If you over-inflate you are much more likely to develop leaks, particularly if using in rocky waters or waters with a lot of sticks, underwater trees etc. I found the tubes are softer than I would have expected when properly inflated. And of course many times after inflating and then being out in the hot sun or in cold water the pressure in the tubes change and you have to add or remove a little bit.