Aha, photos, fantastic. The difference in leading & trailing portions of that prop is nowhere near as radical as the one I have. As per your assumption, I don't think any previous owner has flipped it around, so you should probably return it to the original config. Hopefully it will still work.

If there are any hobby shops in your area, model boats, planes etc. check them out, they may stock small plastic propellers you can try in the place of the one you have... while you're waiting for the black one to arrive in the mail. Hopefully you don't end up breaking it in an effort to get it off again... good luck and we're anxiously awaiting the results..

I could not stop the larger propeller from going the wrong way. I tried inserting washers to take up the slack I finally glued it and even the it would go the wrong way. I finally switched to the smaller propeller and it has worked ever since. It must be something to do with the torque on the large propeller and the wear and tear on an older MJ1200. Have you tried a new MJ1200 to see if that works. I believe MJ1200 will run in either direction. I have just turned the plug to reverse the flow however after a period of time the pump will reverse direction again.

I would not buy another one of these mod kits. I contacted the maker and they sent me all new parts in an effort to get it going.

Tom R

But Mike, it doesn't work at all when the propeller is turned around the right way. I will just wait for the smaller prop, and see how that works. Either way, it will still make a good salt mixing powerhead! :D

Thanks for your review Tom! I also will not buy another one! :lol:

There we go, more input from another actual Sure Flow mod owner, that's what we need, not wild theories from schmucks like me. Sounds like that large prop was just not meant to be.

Yeah, I guess if it works in the current mode, let it be. Might be a viable solution for other mod owners.