This is a remix! Credit to Skimbal

Remixed:
I have made the bottom inlet port bigger with a adapter that will adapt to a 12mm dia pipe, the blades have been remade to have less of a curve (as seen in photos) as well as the casing wall has been thickened to let the water to be held for a little bit longer before being thrown out of the outlet pipe. (also seen in picture) The outlet pipe has been extended to produce a better grip as well as transferring from a larger hole to a smaller in the process.

The reason for the design change is so it is used as a RC boat Ballast pump.

Motor mount is in the design process!

Any questions leave in the comments and ill get back to them ASAP!