finding a leak in a kayak

[mbhazeltine]

Saw this and thought it might be worth trying - I would imagine that there is fine balance between getting it hot enough and not too hot.  Also appreciated the comment that creating the negative pressure happens when you put a warm boat in cold water.
  

https://www.youtube.com/watch?v=q6JfF1GJALY

[Brenda R]

Clever, thanks for sharing this!