If your boat becomes a little soft, this may not be caused by air leakage, because changes in temperature can also lead to changes in air pressure, each degree Celsius can cause 0.003 bar pressure changes. For example, if you fill up later in the day, then the gas will cool overnight, causing the pressure to drop, so in the morning, the gas tank will be a little softer, which is normal. If the leak is not caused by a change in temperature, the first thing you need to confirm is...