but this stuff works GREAT to seal slow leaks in fish ponds
Used to seal leaking pond.  I'm sure this is different from most reviews, but this stuff works GREAT to seal slow leaks in fish ponds.  It flows into cracks and expands, sealing the leak.  Leftover product sinks to the bottom of the pond in 1-2 days leaving water crystal clear, but it can be stirred up by fish or on purpose to address further leaks.  Or you can put it on your face for free by sinking your head in my koi pond, if that's the application you are looking for.
Rating: 5 stars