With my leaky neoprenese, I always filled up a large bucket with water, threw in the section I believed was leaking and looked for bubbles.
I would also just stick a hose in the each leg and fill em up, where I saw bubbles is where the leak was.
There are probally better ways to search for leaks but this is how I always did it.
Ryan S. Petzold
aka Sparkey and/or Special