Why is my MJ1200 with SureFlow mod doing this?

[Myka]

Oops, I forgot to mention that it is pushing water out, not sucking it in. It has never made the water go backwards. The tabs get in the way, and don't allow the prop to spin that way.

fkshiu: I'm not sure what you mean about the flat side in front? Do you mean the flatter edge of each petal should be leading the spin, not following?

The guy I bought it off is sending me the black propeller, so hopefully that one will work better.