The3rd Earl Of Derby wrote:

he needs to widen the pipe in the gargoyle somehow.

It would help if its possible, I just assumed it would be impossible.
But even then it may not make much difference, all depends what the
main obstacle is, the narrow pipe or the extra height. Since the
gargoyle is most likely designed to run on standard pond pumps, and
does happily at its intended height, I would say the problem is mostly
the extra height and the lack of thereby needed extra pressure.


NT