Yeah, I've broken the shafts on both of mine, but it doesn't make any difference. What's worse is eventually mangling the plastic lid intake thing that screws in over the impeller...the one with the o-ring! Those three skinny tabs don't hold up well to a wrench! The new models have some teeth around the outside that supposedly give you better grip trying to open it by hand, but over time it'll take more strength than I have to do it that way. That whole locking mechanism cracked apart and now I'm holding it together with a bunch of zip ties!
1. Rio 1400
2. At 4 ft of head 243 gal/hour ( after 7 months running continuously I'm down to ~220)
3. 27 Watts
4. sized directly to 3/4" PVC
7. 7 months
8. Never has clogged or jammed. Never has required cleaning. Runs fairly quiet
9. Would definitely recommend, very easy to use and is still on the cheap end as far as pumps go.