I took my Current USA eFlux DC 6010 pump apart for cleaning and now I can't get it back together. There are no signs of damage or warping. I've tried the manufacturer's manual, website, and youtube; however, there are no videos on how to assemble it back together. I feel like I'm doing it properly, but it is just not fitting together without a large gap. The O-ring is preventing the blue half of the pump from attaching back on. I've tried putting the O-ring around the magnets and in between the magnets, but it ends up preventing the blue cover from fitting on properly. Any help would be appreciated.
Here is a link for the pump https://current-usa.com/eflux-aquarium-dc-flow-pump-with-flow-control-1900-gph/
Here is a link for the pump https://current-usa.com/eflux-aquarium-dc-flow-pump-with-flow-control-1900-gph/
